Aplastic Anemia Test

Aplastic Anemia Test and health information

Aplastic anemia is a rare and serious disease that is caused by damage to bone marrow and can be very dangerous. Bone marrow is where new blood cells are made. 

Platelets die every six days, and red and white blood cells die after 120 days. Healthy persons are unaffected by blood cell loss because their bone marrow produces new cells to replace the ones that have died. When the bone marrow is injured, however, it stops producing new blood cells, resulting in a low blood cell count. This failure to produce new blood cells manifests itself in a variety of ways, including a blood illness known as aplastic anemia.  

The aplastic anemia test may be found here if you want to know how many blood cells you have. Several aspects of your blood will be examined during this test, including your hemoglobin and hematocrit levels. Ulta Lab Tests has tests that can help you figure out whether you're anemic. 

On this page, you may select from a variety of lab tests. You can order them, have your specimen collected, and find out your results in 1 to 2 business days for most of them. 

guide to lab tests for aplastic anemia is below a list of anemia tests. You can read it to learn more about the tests.

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Description: A CBC or Complete Blood Count with Differential and Platelets test is a blood test that measures many important features of your blood’s red and white blood cells and platelets. A Complete Blood Count can be used to evaluate your overall health and detect a wide variety of conditions such as infection, anemia, and leukemia. It also looks at other important aspects of your blood health such as hemoglobin, which carries oxygen. 

Also Known As: CBC test, Complete Blood Count Test, Total Blood Count Test, CBC with Differential and Platelets test, Hemogram test  

Collection Method: Blood Draw 

Specimen Type: Whole Blood 

Test Preparation: No preparation required 

When is a Complete Blood Count test ordered?  

The complete blood count (CBC) is an extremely common test. When people go to the doctor for a standard checkup or blood work, they often get a CBC. Suppose a person is healthy and their results are within normal ranges. In that case, they may not need another CBC unless their health condition changes, or their healthcare professional believes it is necessary. 

When a person exhibits a variety of signs and symptoms that could be connected to blood cell abnormalities, a CBC may be done. A health practitioner may request a CBC to help diagnose and determine the severity of lethargy or weakness, as well as infection, inflammation, bruises, or bleeding. 

When a person is diagnosed with a disease that affects blood cells, a CBC is frequently done regularly to keep track of their progress. Similarly, if someone is being treated for a blood condition, a CBC may be performed on a regular basis to see if the treatment is working. 

Chemotherapy, for example, can influence the generation of cells in the bone marrow. Some drugs can lower WBC counts in the long run. To monitor various medication regimens, a CBC may be required on a regular basis. 

What does a Complete Blood Count test check for? 

The complete blood count (CBC) is a blood test that determines the number of cells in circulation. White blood cells (WBCs), red blood cells (RBCs), and platelets (PLTs) are three types of cells suspended in a fluid called plasma. They are largely created and matured in the bone marrow and are released into the bloodstream when needed under normal circumstances. 

A CBC is mainly performed with an automated machine that measures a variety of factors, including the number of cells present in a person's blood sample. The findings of a CBC can reveal not only the quantity of different cell types but also the physical properties of some of the cells. 

Significant differences in one or more blood cell populations may suggest the presence of one or more diseases. Other tests are frequently performed to assist in determining the reason for aberrant results. This frequently necessitates visual confirmation via a microscope examination of a blood smear. A skilled laboratory technician can assess the appearance and physical features of blood cells, such as size, shape, and color, and note any anomalies. Any extra information is taken note of and communicated to the healthcare provider. This information provides the health care provider with further information about the cause of abnormal CBC results. 

The CBC focuses on three different types of cells: 

WBCs (White Blood Cells) 

The body uses five different types of WBCs, also known as leukocytes, to keep itself healthy and battle infections and other types of harm. The five different leukocytes are eosinophiles, lymphocytes, neutrophiles, basophils, and monocytes. They are found in relatively steady numbers in the blood. Depending on what is going on in the body, these values may momentarily rise or fall. An infection, for example, can cause the body to manufacture more neutrophils in order to combat bacterial infection. The amount of eosinophils in the body may increase as a result of allergies. A viral infection may cause an increase in lymphocyte production. Abnormal (immature or mature) white cells multiply fast in certain illness situations, such as leukemia, raising the WBC count. 

RBCs (Red Blood Cells) 

The bone marrow produces red blood cells, also known as erythrocytes, which are transferred into the bloodstream after maturing. Hemoglobin, a protein that distributes oxygen throughout the body, is found in these cells. Because RBCs have a 120-day lifespan, the bone marrow must constantly manufacture new RBCs to replace those that have aged and disintegrated or have been lost due to hemorrhage. A variety of diseases, including those that cause severe bleeding, can alter the creation of new RBCs and their longevity. 

The CBC measures the number of RBCs and hemoglobin in the blood, as well as the proportion of RBCs in the blood (hematocrit), and if the RBC population appears to be normal. RBCs are generally homogeneous in size and shape, with only minor differences; however, considerable variances can arise in illnesses including vitamin B12 and folate inadequacy, iron deficiency, and a range of other ailments. Anemia occurs when the concentration of red blood cells and/or the amount of hemoglobin in the blood falls below normal, resulting in symptoms such as weariness and weakness. In a far smaller percentage of cases, there may be an excess of RBCs in the blood (erythrocytosis or polycythemia). This might obstruct the flow of blood through the tiny veins and arteries in extreme circumstances. 


Platelets, also known as thrombocytes, are small cell fragments that aid in the regular clotting of blood. A person with insufficient platelets is more likely to experience excessive bleeding and bruises. Excess platelets can induce excessive clotting or excessive bleeding if the platelets are not operating properly. The platelet count and size are determined by the CBC. 

Lab tests often ordered with a Complete Blood Count test: 

  • Reticulocytes
  • Iron and Total Iron Binding Capacity
  • Basic Metabolic Panel
  • Comprehensive Metabolic Panel
  • Lipid Panel
  • Vitamin B12 and Folate
  • Prothrombin with INR and Partial Thromboplastin Times
  • Sed Rate (ESR)
  • C-Reactive Protein
  • Epstein-Barr Virus
  • Von Willebrand Factor Antigen

Conditions where a Complete Blood Count test is recommended: 

  • Anemia
  • Aplastic Anemia
  • Iron Deficiency Anemia
  • Vitamin B12 and Folate Deficiency
  • Sickle Cell Anemia
  • Heart Disease
  • Thalassemia
  • Leukemia
  • Autoimmune Disorders
  • Cancer
  • Bleeding Disorders
  • Inflammation
  • Epstein-Barr Virus
  • Mononucleosis

Commonly Asked Questions: 

How does my health care provider use a Complete Blood Count test? 

The complete blood count (CBC) is a common, comprehensive screening test used to measure a person's overall health status.  

What do my Complete Blood Count results mean? 

A low Red Blood Cell Count, also known as anemia, could be due many different causes such as chronic bleeding, a bone marrow disorder, and nutritional deficiency just to name a few. A high Red Blood Cell Count, also known as polycythemia, could be due to several conditions including lung disease, dehydration, and smoking. Both Hemoglobin and Hematocrit tend to reflect Red Blood Cell Count results, so if your Red Blood Cell Count is low, your Hematocrit and Hemoglobin will likely also be low. Results should be discussed with your health care provider who can provide interpretation of your results and determine the appropriate next steps or lab tests to further investigate your health. 

What do my Differential results mean? 

A low White Blood Cell count or low WBC count, also known as leukopenia, could be due to a number of different disorders including autoimmune issues, severe infection, and lymphoma. A high White Blood Cell count, or high WBC count, also known as leukocytosis, can also be due to many different disorders including infection, leukemia, and inflammation. Abnormal levels in your White Blood Cell Count will be reflected in one or more of your different white blood cells. Knowing which white blood cell types are affected will help your healthcare provider narrow down the issue. Results should be discussed with your health care provider who can provide interpretation of your results and determine the appropriate next steps or lab tests to further investigate your health. 

What do my Platelet results mean? 

A low Platelet Count, also known as thrombocytopenia, could be due to a number of different disorders including autoimmune issues, viral infection, and leukemia. A high Platelet Count, also known as Thrombocytosis, can also be due to many different disorders including cancer, iron deficiency, and rheumatoid arthritis. Results should be discussed with your health care provider who can provide interpretation of your results and determine the appropriate next steps or lab tests to further investigate your health. 

NOTE: Only measurable biomarkers will be reported. Certain biomarkers do not appear in healthy individuals. 

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

Reflex Parameters for Manual Slide Review
  Less than  Greater Than 
WBC  1.5 x 10^3  30.0 x 10^3 
Hemoglobin  7.0 g/dL  19.0 g/dL 
Hematocrit  None  75%
Platelet  100 x 10^3  800 x 10^3 
MCV  70 fL  115 fL 
MCH  22 pg  37 pg 
MCHC  29 g/dL  36.5 g/dL 
RBC  None  8.00 x 10^6 
RDW  None  21.5
Relative Neutrophil %  1% or ABNC <500  None 
Relative Lymphocyte %  1% 70%
Relative Monocyte %  None  25%
Eosinophil  None  35%
Basophil  None  3.50%
Platelet  <75 with no flags,
>100 and <130 with platelet clump flag present,
Instrument Flags Variant lymphs, blasts,
immature neutrophils,  nRBC’s, abnormal platelets,
giant platelets, potential interference
The automated differential averages 6000+ cells. If none of the above parameters are met, the results are released without manual review.
CBC Reflex Pathway

Step 1 - The slide review is performed by qualified Laboratory staff and includes:

  • Confirmation of differential percentages
  • WBC and platelet estimates, when needed
  • Full review of RBC morphology
  • Comments for toxic changes, RBC inclusions, abnormal lymphs, and other
  • significant findings
  • If the differential percentages agree with the automated counts and no abnormal cells are seen, the automated differential is reported with appropriate comments

Step 2 - The slide review is performed by qualified Laboratory staff and includes: If any of the following are seen on the slide review, Laboratory staff will perform a manual differential:

  • Immature, abnormal, or toxic cells
  • nRBC’s
  • Disagreement with automated differential
  • Atypical/abnormal RBC morphology
  • Any RBC inclusions

Step 3 If any of the following are seen on the manual differential, a Pathologist will review the slide:

  • WBC<1,500 with abnormal cells noted
  • Blasts/immature cells, hairy cell lymphs, or megakaryocytes
  • New abnormal lymphocytes or monocytes
  • Variant or atypical lymphs >15%
  • Blood parasites
  • RBC morphology with 3+ spherocytes, RBC inclusions, suspect Hgb-C,
  • crystals, Pappenheimer bodies or bizarre morphology
  • nRBC’s

Description: A Vitamin B12 test is a blood test that measures the level of Vitamin B12 in the blood’s serum and is used to detect Vitamin B12 deficiency.

Also Known As:  B12 Test, Cobalamin Test, Vitamin B12 test, Serum B12 Test 

Collection Method: Blood Draw 

Specimen Type: Serum 

Test Preparation: No preparation required. 

When is a Vitamin B12 test ordered?  

When a complete blood count and/or blood smear, performed as part of a health checkup or anemia evaluation, reveal a low red blood cell count with the presence of big RBCs, vitamin B12 levels may be ordered. A high mean corpuscular volume implies that the RBCs have grown in size. 

When a person exhibits the following signs and symptoms of a deficit, testing for B12 levels may be necessary: 

  • Diarrhea 
  • Dizziness 
  • Muscle weakness, fatigue 
  • Appetite loss. 
  • Skin that is pale 
  • Irregular heartbeats, rapid heart rate 
  • Breathing problems 
  • Tongue and mouth ache 
  • In the feet, hands, arms, and legs, there is tingling, numbness, and/or burning 
  • Confusion or obliviousness 
  • Paranoia 

When a person is at risk of deficiency, such as those with a history of malnutrition or a condition associated to malabsorption, B12 tests may be required. 

Individuals being treated for malnutrition or a B12 or folate deficit may have these tests done on a frequent basis to see how effective their treatments are. This could be part of a long-term therapy plan for people who have a disease that causes chronic deficiency.  

What does a Vitamin B12 blood test check for? 

Vitamin B12 is a member of the vitamin B complex. It is required for the creation of normal red blood cells, tissue and cell healing, and the synthesis of DNA, the genetic material in cells. Vitamin B12 is a nutrient that the body cannot make and must be obtained through the diet. 

Vitamin B12 deficiency is detected by measuring vitamin B12 in the liquid portion of the blood. 

A B12 deficiency can cause macrocytic anemia, which is characterized by red blood cells that are bigger than normal. Megaloblastic anemia is a kind of macrocytic anemia marked by the generation of fewer but larger RBCs known as macrocytes, as well as cellular abnormalities in the bone marrow. Reduced white blood cell and platelet count are two other test results linked to megaloblastic anemia. 

B12 is also necessary for nerve function, and a lack of it can induce neuropathy, which causes tingling and numbness in the hands and feet of those who are affected. 

B12 deficiency is most commonly caused by a lack of vitamin B12 in the diet or supplements, insufficient absorption, or an increased requirement, such as during pregnancy. 

Lab tests often ordered with a Vitamin B12 test: 

  • Folate 
  • Methylmalonic Acid (MMA) 
  • Homocysteine 
  • Vitamin B1 
  • Vitamin B2 
  • Vitamin B3 
  • Vitamin B5 
  • Vitamin B6 
  • Vitamin B7 
  • Rheumatoid factor 

Conditions where a Vitamin B12 test is recommended:

  • Vitamin B12 Deficiency 
  • Pernicious Anemia 
  • Nerve Damage 
  • Malabsorption 
  • Malnutrition 

How does my health care provider use a Vitamin B12 test? 

Vitamin B12 and folate are frequently used in conjunction to detect deficiencies and to aid in the diagnosis of anemias such as pernicious anemia, an inflammatory condition that inhibits B12 absorption. 

B12 and folate are two vitamins that the body cannot generate and must be obtained from the diet. They are essential for the creation of normal red blood cells, tissue and cell repair, and the synthesis of DNA, the genetic material in cells. B12 is required for normal nerve function. 

B12 and folate tests can also be used to assess someone who is experiencing mental or behavioral changes, especially in the elderly. A B12 test can be ordered with or without folate, as well as with other screening laboratory tests like a complete blood count, comprehensive metabolic panel, antinuclear antibody, C-reactive protein, and rheumatoid factor to help determine why a person is exhibiting signs and symptoms of a nerve condition. 

B12 and folate tests can also be performed in conjunction with a variety of other tests to assess a person's overall health and nutritional status if they have signs and symptoms of substantial malnutrition or dietary malabsorption. People with alcoholism, liver disease, stomach cancer, or malabsorption diseases including celiac disease, inflammatory bowel disease, or cystic fibrosis may fall into this category. 

Testing may be performed to assess the success of treatment in patients with known B12 and folate deficits. This is especially true for people who cannot absorb B12 and/or folate effectively and must be treated for the rest of their lives. 

Folate levels in the blood's serum might fluctuate depending on a person's recent diet. Because red blood cells contain 95 percent of circulating folate, a test to evaluate folate levels inside RBCs could be employed instead of or in addition to the serum test. Some doctors believe that the RBC folate test is a better predictor of long-term folate status and is more clinically useful than serum folate, however there is no consensus on this. 

Homocysteine and methylmalonic acid are two more laboratory tests that can be used to detect B12 and folate deficits. In B12 deficiency, both homocysteine and MMA are high, whereas in folate deficit, only homocysteine, not MMA, is elevated. This distinction is critical because treating anemia with folate treats the anemia but not the brain damage, which may be irreparable. 

What do my Vitamin B12 test results mean? 

Normal B12 and folate levels may indicate that a person does not suffer from a deficiency and that the signs and symptoms they are experiencing?are caused by something else. Normal levels, on the other hand, may indicate that a person's stored B12 and/or folate has not yet been depleted. 

A health practitioner may order a methylmalonic acid test as an early sign of B12 deficiency if a B12 level is normal but a deficiency is still suspected. 

A low B12 and/or folate level in a person with signs and symptoms implies a deficiency, although it does not always indicate the severity of the anemia or related neuropathy. Additional tests are frequently performed to determine the source of the deficit. Low B12 or folate levels can be caused by a variety of factors. 

Dietary folate or B12 deficiency, which?is uncommon in the United States. It can be evident in people who are malnourished in general and vegans who do not eat any animal products. Folate deficiency has become extremely rare since the development of fortified cereals, breads, and other grain products. 

Both B12 and folate deficits can be caused by diseases that prevent them from being absorbed in the small intestine. These may include the following: 

  • Pernicious anemia 
  • Celiac disease 
  • Crohn's disease and ulcerative colitis are examples of inflammatory bowel disease. 
  • Bacterial overgrowth or the presence of parasites in the intestines, such as tapeworms 
  • Long-term usage of antacids or H2 proton pump inhibitors reduces stomach acid production. 
  • Absorption can be considerably reduced by surgery that removes part of the stomach or the intestines, such as gastric bypass. 
  • Insufficiency of the pancreas 
  • Chronic alcoholism or heavy drinking 
  • Some treatments, such as metformin, omeprazole, methotrexate, or anti-seizure medications like phenytoin, are used. 
  • Increased requirements for healthy fetal development, all pregnant women require an increased amount of folate and are advised to consume 400 micrograms of folic acid every day. The need for folate is higher in those who have cancer that has spread or who have chronic hemolytic anemia. 
  • Smoking 

If a person is being treated for a B12 or folate deficit with supplements, normal or higher findings suggest that the treatment is working. 

High amounts of B12 are uncommon, and they aren't routinely evaluated clinically. If a person has a condition such chronic myeloproliferative neoplasm, diabetes, heart failure, obesity, AIDS, or severe liver disease, their vitamin B12 level may be elevated. High B12 levels can also be caused by using estrogens, vitamin C, or vitamin A. 

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

Description: An antinuclear antibody screening is a blood test that is going to look for a positive or negative result. If the result comes back as positive further test will be done to look for ANA Titer and Pattern. Antinuclear antibodies are associated with Lupus.

Also Known As: ANA Test, ANA Screen IFA with Reflex to Titer and pattern IFA Test, ANA with Reflex Test, Antinuclear Antibody Screen Test

Collection Method: Blood Draw

Specimen Type: Serum

Test Preparation: No preparation required

IMPORTANT Reflex Information: If ANA Screen, IFA is positive, then ANA Titer and Pattern will be performed at an additional charge of $13.00

When is an ANA Screen test ordered?

When someone exhibits signs and symptoms of a systemic autoimmune illness, the ANA test is requested. Symptoms of autoimmune illnesses can be vague and non-specific, and they can fluctuate over time, steadily deteriorate, or oscillate between periods of flare-ups and remissions.

What does an ANA Screen blood test check for?

Antinuclear antibodies are a type of antibody produced by the immune system when it is unable to differentiate between its own cells and foreign cells. Autoantibodies are antibodies that attack the body's own healthy cells, causing symptoms like tissue and organ inflammation, joint and muscle discomfort, and weariness. The moniker "antinuclear" comes from the fact that ANA specifically targets chemicals located in a cell's nucleus. The presence of these autoantibodies in the blood is detected by the ANA test.

The presence of ANA may be a sign of an autoimmune process, and it has been linked to a variety of autoimmune illnesses, the most common of which being systemic lupus erythematosus.

One of the most common tests used to detect an autoimmune disorder or rule out other conditions with comparable signs and symptoms is the ANA test. As a result, it's frequently followed by other autoantibody tests that can help establish a diagnosis. An ENA panel, anti-dsDNA, anti-centromere, and/or anti-histone test are examples of these.

Lab tests often ordered with an ANA Screen test:

  • ENA Panel
  • Sed Rate (ESR)
  • C-Reactive Protein
  • Complement
  • AMA
  • Centromere antibody
  • Histone Antibody

Conditions where an ANA Screen test is recommended:

  • Autoimmune Disorders
  • Lupus
  • Rheumatoid Arthritis
  • Sjogren Syndrome
  • Scleroderma

How does my health care provider use an ANA Screen test?

One of the most often performed tests to diagnose systemic lupus erythematosus is the antinuclear antibody test. It serves as the first step in the evaluation process for autoimmune diseases that might impact various body tissues and organs.

When a person's immune system fails to discriminate between their own cells and foreign cells, autoantibodies called ANA are created. They attack chemicals found in a cell's nucleus, causing organ and tissue damage.

ANA testing may be utilized in conjunction with or after other autoantibody tests, depending on a person's indications and symptoms and the suspected condition. Antibodies that target specific compounds within cell nuclei, such as anti-dsDNA, anti-centromere, anti-nucleolar, anti-histone, and anti-RNA antibodies, are detected by some of these tests, which are considered subsets of the general ANA test. In addition, an ENA panel can be utilized as a follow-up to an ANA.

These further tests are performed in addition to a person's clinical history to assist diagnose or rule out other autoimmune conditions such Sjögren syndrome, polymyositis, and scleroderma.

To detect ANA, various laboratories may employ different test procedures. Immunoassay and indirect fluorescent antibody are two typical approaches. The IFA is regarded as the gold standard. Some labs will test for ANA using immunoassay and then employ IFA to confirm positive or equivocal results.

An indirect fluorescent antibody is created by mixing a person's blood sample with cells attached to a slide. Autoantibodies in the blood bind to the cells and cause them to react. A fluorescent antibody reagent is used to treat the slide, which is then inspected under a microscope. The existence of fluorescence is observed, as well as the pattern of fluorescence.

Immunoassays—these procedures are frequently carried out using automated equipment, however they are less sensitive than IFA in identifying ANA.

Other laboratory tests linked to inflammation, such as the erythrocyte sedimentation rate and/or C-reactive protein, can be used to assess a person's risk of SLE or another autoimmune disease.

What do my ANA test results mean?

A positive ANA test indicates the presence of autoantibodies. This shows the presence of an autoimmune disease in someone who has signs and symptoms, but more testing is needed to make a definitive diagnosis.

Because ANA test results can be positive in persons who have no known autoimmune disease, they must be carefully assessed in conjunction with a person's indications and symptoms.

Because an ANA test can become positive before signs and symptoms of an autoimmune disease appear, determining the meaning of a positive ANA in a person who has no symptoms can take some time.

SLE is unlikely to be diagnosed with a negative ANA result. It is normally not required to repeat a negative ANA test right away; however, because autoimmune illnesses are episodic, it may be desirable to repeat the ANA test at a later date if symptoms persist.

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

Description: The EBV antibody test is used to measure the antibodies present in the immune system. EBV tests are used to help diagnose mononucleosis (mono) by ruling out EBV and to differentiate between EBV infection and other infections that present with the same symptoms.

Also Known As: EBV Antibody Test, EBV Ab Test, EBV Test, EBV Panel, Epstein Barr Virus (EBV) Panel, Epstein Barr Virus EBV Antibody Panel

Collection Method: Blood Draw

Specimen Type: Serum

Test Preparation: No preparation required

When is an Epstein-Barr Virus Antibody Panel test ordered?

When someone has symptoms that imply mono but a negative mono test, or when a pregnant woman has flu-like symptoms and her healthcare provider wants to know if the symptoms are caused by EBV or another microorganism, EBV antibody testing may be recommended.

When a healthcare provider wishes to know if they've been exposed to EBV before, testing might be ordered. When a healthcare provider wants to follow antibody concentrations or when the first test was negative but the healthcare practitioner still feels the person's symptoms are due to EBV, testing may be repeated.

What does an Epstein-Barr Virus Antibody Panel blood test check for?

The Epstein-Barr virus is a virus that causes a mild to moderate sickness in most people. Epstein-Barr virus blood tests detect EBV antibodies in the blood and aid in the diagnosis of EBV infection.

The Epstein-Barr virus produces a highly common infection. Most persons in the United States are infected with EBV at some point in their life, according to the Centers for Disease Control and Prevention. The virus is very contagious and can readily spread from one person to another. It is found in infected people's saliva and can be spread by intimate contact, such as kissing or sharing utensils or cups.

The incubation period is a period of several weeks following initial EBV exposure before related symptoms manifest. The virus multiplies in number during the acute primary infection. There is a drop in viral levels and a remission of symptoms after this, but the virus never totally disappears. EBV that stays latent in a person's body for the rest of their lives may reawaken, although it normally causes little problems unless the person's immune system is severely damaged.

The majority of people are infected with EBV as children and have few or no symptoms. When an infection arises in adolescence, however, it can lead to infectious mononucleosis, sometimes known as mono, which is characterized by fatigue, fever, sore throat, swollen lymph nodes, an enlarged spleen, and occasionally an enlarged liver. About 25% of infected teens and young adults experience these symptoms, which normally go away within a month or two.

Mono is usually diagnosed based on symptoms and the results of a full blood count and a mono test. About 25% of people with mono don't create heterophile antibodies, resulting in a negative mono test; this is especially true in youngsters. Antibodies to the EBV virus can be tested to see if the symptoms these people are having are due to a current infection with the virus.

The most prevalent cause of mono is EBV. Other causes of mono, according to the CDC, include CMV, hepatitis A, hepatitis B, or hepatitis C, rubella, and toxoplasmosis. It can be difficult to tell the difference between EBV and these other infections at times. For example, diagnosing the etiology of symptoms of a viral disease in a pregnant woman may be critical. Testing can assist distinguish between a primary EBV infection, which has not been demonstrated to harm a developing baby, and a CMV, herpes simplex virus, or toxoplasmosis infection, which can cause pregnancy difficulties and harm the fetus.

It's also crucial to rule out EBV infection and check for other possible explanations of symptoms. Those suffering from strep throat, a bacterial infection caused by group A streptococcus, must be recognized and treated with antibiotics. It's possible to have strep throat instead of mono, or to have both at the same time.

There are several assays for different types and classes of EBV antibodies. Antibodies are proteins produced by the body as part of an immune response to antigens from the Epstein-Barr virus. The amount of each of these EBV antibodies rises and declines as the illness proceeds during a primary EBV infection. Antibodies in the blood can help with diagnosis and can tell a doctor about the stage of illness and whether it's a current, recent, or past infection.

Antibody Viral Capsid Antigen-IgM antibody is commonly identified in the blood at this time. After being exposed to the virus, it appears for roughly 4 to 6 weeks before disappearing.

Antibody to VCA-IgG It appears during acute infection, with the maximum level at 2 to 4 weeks, then gradually decreases, stabilizes, and is present for the rest of one's life.

Antibody to the early antigen appears during the acute infection phase and subsequently fades; about 20% of people infected will have detectable amounts for several years after the EBV infection has cleared.

Lab tests often ordered with an Epstein-Barr Virus Antibody Panel test:

  • Mononucleosis
  • Complete Blood Count (CBC)
  • White Blood Cell Count (WBC)
  • Blood Smear
  • Cytomegalovirus
  • Toxoplasmosis

Conditions where an Epstein-Barr Virus Antibody Panel test is recommended:

  • Mononucleosis
  • Influenza
  • Pregnancy
  • Epstein-Barr Virus

How does my health care provider use an Epstein-Barr Virus Antibody Panel test?

If a person is symptomatic but has a negative mono test, blood tests for Epstein-Barr virus antibodies can help diagnose EBV infection, the most prevalent cause of infectious mononucleosis.

One or more EBV antibody tests, along with testing for cytomegalovirus, toxoplasmosis, and other infections, may be ordered in pregnant women with signs of a viral disease to assist distinguish between EBV and disorders that generate similar symptoms.

These tests may be conducted for asymptomatic people to see if they've been exposed to EBV before or are vulnerable to a primary EBV infection. This is not regularly done, but it may be requested if someone has been in intimate contact with a person who has mono, such as a teenager or an immunocompromised person.

The Centers for Disease Control and Prevention recommends ordering a variety of tests to assess whether a person is vulnerable to EBV, as well as to detect a recent or earlier infection, or a reactivated EBV infection.

What do my Epstein Barr Virus antibody test results mean?

When interpreting the findings of EBV antibody testing, caution is advised. The person being tested's indications and symptoms, as well as his or her medical history, must be considered. A healthcare provider may seek the advice of an infectious disease specialist, particularly one who is familiar with EBV testing.

If someone tests positive for VCA-IgM antibodies, they are most likely infected with EBV and may be in the early stages of the illness. Even though the mono test was negative, the individual is most likely to be diagnosed with mono if they also have symptoms linked with it.

If a person's VCA-IgG and EA-D IgG tests come back positive, it's quite likely that they have an active or recent EBV infection.

If VCA-IgM is negative but VCA-IgG and an EBNA antibody are positive, the person tested most likely had an EBV infection before.

If a person is asymptomatic and negative for VCA-IgG, he or she has most likely never been exposed to EBV and is hence susceptible to infection.

In general, growing VCA-IgG levels suggest a current EBV infection, whereas dropping values indicate a recently resolved EBV infection. However, EBV antibody concentrations must be interpreted with caution because the amount of antibody present is unrelated to the severity of the infection or the length of time it will remain. High amounts of VCA-IgG may be present, and they may stay that way for the rest of one's life.

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

Reference Range(s)

Epstein-Barr Virus VCA Antibody (IgM)


  • <36.00 Negative
  • 36.00-43.99Equivocal
  • >43.99Positive

Epstein-Barr Virus VCA Antibody (IgG)


  • <18.00 Negative
  • 18.00-21.99Equivocal
  • >21.99Positive

Epstein-Barr Virus Nuclear Antigen (EBNA) Antibody (IgG)


  • <18.00 Negative
  • 18.00-21.99Equivocal
  • >21.99Positive

Most Popular

Description: Iron is a blood test used to determine iron levels in your blood, your body’s ability to transport iron, and help diagnose iron-deficiency and iron overload.

Also Known As: Serum Iron Test, Serum Fe Test, Iron Total Test, IBC Test, Iron Lab Test, Iron Blood test

Collection Method: Blood Draw

Specimen Type: Serum

Test Preparation: The patient should be fasting 9-12 hours prior to collection and collection should be done in the morning.

When is an Iron Total test ordered?

When a doctor feels that a person's symptoms are caused by iron overload or poisoning, an iron test, as well ferritin assays, may be done. These may include the following:

  • Joint discomfort
  • Weakness and exhaustion
  • Energy deficiency
  • Pain in the abdomen
  • Suffering from a lack of sexual desire
  • Problems with the heart

When a child is suspected of ingesting too many iron tablets, a serum iron test is required to detect the poisoning and to determine its severity.

A doctor may also request iron testing when the results of a standard CBC test are abnormal, such as a low hematocrit or hemoglobin, or when a doctor suspects iron deficiency based on signs and symptoms such as:

  • Chronic tiredness/fatigue
  • Dizziness
  • Weakness
  • Headaches
  • Skin that is pale

What does an Iron Total blood test check for?

Iron is a necessary ingredient for survival and is a critical component of hemoglobin, the protein in red blood cells that binds oxygen in the lungs and releases it to other parts of the body. It is required in small amounts to help form normal red blood cells and is a critical part of hemoglobin, the protein in RBCs that binds oxygen in the lungs and releases it as blood circulates to other parts of the body.

By detecting numerous components in the blood, iron tests are ordered to determine the quantity of iron in the body. These tests are frequently ordered at the same time, and the data are analyzed together to determine the diagnosis and/or monitor iron deficiency or overload.

The level of iron in the liquid component of the blood is measured by serum iron.

Low iron levels can cause anemia, resulting in a decrease in the production of microcytic and hypochromic RBCs. Large amounts of iron, on the other hand, might be hazardous to the body. When too much iron is absorbed over time, iron compounds build up in tissues, particularly the liver, heart, and pancreas.

Normally, iron is absorbed from food and distributed throughout the body by binding to transferrin, a liver protein. About 70% of the iron delivered is used in the synthesis of hemoglobin in red blood cells. The rest is stored as ferritin or hemosiderin in the tissues, with minor amounts being utilized to make other proteins like myoglobin and enzymes.

Insufficient intake, limited absorption, or increased dietary requirements, as observed during pregnancy or with acute or chronic blood loss, are all signs of iron deficiency. Excessive intake of iron pills can cause acute iron overload, especially in children. Excessive iron intake, genetic hemochromatosis, multiple blood transfusions, and a few other disorders can cause chronic iron overload.

Lab tests often ordered with an Iron Total test:

  • Complete Blood Count
  • Ferritin
  • Transferrin
  • Zinc Protoporphyrin

Conditions where an Iron Total test is recommended:

  • Anemia
  • Hemochromatosis

How does my health care provider use an Iron Total test?

The amount of circulating iron in the blood, the capacity of the blood to carry iron, and the amount of stored iron in tissues can all be determined by ordering one or more tests. Testing can also assist distinguish between different types of anemia

The level of iron in the blood is measured by serum iron.

Total iron-binding capacity is a measurement of all the proteins in the blood that may bind to iron, including transferrin. The TIBC test is a useful indirect assessment of transferrin because it is the predominant iron-binding protein. In response to the requirement for iron, the body generates transferrin. Transferrin levels rise when iron levels are low, and vice versa. About one-third of the binding sites on transferrin are used to transport iron in healthy humans.

The reserve capacity of transferrin, or the part of transferrin that has not yet been saturated, is measured by UIBC. Transferrin levels are also reflected in the UIBC.

The iron test result, as well as TIBC or UIBC, are used to calculate transferrin saturation. It represents the proportion of transferrin that is iron-saturated.

Ferritin is the major storage protein for iron inside cells, and serum ferritin represents the quantity of stored iron in the body.

These tests are frequently ordered together, and the results can assist the doctor figure out what's causing the iron deficit or overload.

Additional information about iron

A balance between the quantity of iron received into the body and the amount of iron lost is required to maintain normal iron levels. Because a tiny quantity of iron is lost each day, a deficiency will develop if too little iron is consumed. In healthy persons, there is usually enough iron to prevent iron deficiency and/or iron deficiency anemia, unless they eat a bad diet. There is a greater need for iron in some circumstances. People who have persistent gut bleeding or women who have heavy menstrual periods lose more iron than they should and can develop iron deficiency. Females who are pregnant or breastfeeding lose iron to their babies and may develop an iron shortage if they do not consume enough supplemental iron. Children may require additional iron, especially during periods of rapid growth, and may suffer iron shortage.

Low serum iron can also arise when the body is unable to adequately utilize iron. The body cannot correctly utilize iron to generate additional red cells in many chronic disorders, particularly malignancies, autoimmune diseases, and chronic infections. As a result, transferrin production slows, serum iron levels drop because little iron is absorbed from the stomach, and ferritin levels rise. Malabsorption illnesses like sprue syndrome can cause iron deficiency.

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

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Description: Reticulocytes are red blood cells that are not fully developed yet. The reticulocyte test is used to measure the amount of underdeveloped red blood cells.

Also Known As: Retic Count Reticulocyte Percent Test, Reticulocyte Index Test, Corrected Reticulocyte Test, Reticulocyte Production Index Test, RPI Test

Collection Method: Blood Draw

Specimen Type: Whole Blood

Test Preparation: No preparation required

When is a Reticulocyte Count test ordered?

A reticulocyte count may be requested in the following situations:

  • A low RBC count, as well as a low hemoglobin and hematocrit, are found on a complete blood count.
  • A doctor wants to check the function of the bone marrow.
  • Paleness, loss of energy, exhaustion, weakness, shortness of breath, and/or blood in the stool are signs and symptoms of anemia or persistent bleeding.
  • A disorder known to impact RBC production, such as iron deficiency anemia, vitamin B12 or folate deficiency, or renal illness, has been recognized and is being treated.
  • A person is receiving radiation or chemotherapy.
  • A bone marrow transplant has been performed.

When a person has an increased quantity of RBCs and an elevated hemoglobin and hematocrit, a blood test is performed to evaluate the degree and pace of RBC overproduction.

What does a Reticulocyte Count blood test check for?

Reticulocytes are young red blood cells that have just been created. The number and/or percentage of reticulocytes in the blood is determined by a reticulocyte test, which is a reflection of recent bone marrow function or activity.

Red blood cells are made in the bone marrow, where blood-forming stem cells differentiate and grow into reticulocytes, which then mature into mature RBCs. When compared to mature RBCs, reticulocytes have a volume of about 24 percent more. Although adult RBCs do not have a nucleus like most other cells in the body, reticulocytes still contain some genetic material. Reticulocytes lose the last traces of RNA as they mature, and most of them are fully matured within a day of being released from the bone marrow into the bloodstream. The reticulocyte count or percentage is an excellent measure of a person's ability to manufacture enough red blood cells in their bone marrow.

RBCs last around 120 days in circulation, and the bone marrow must constantly manufacture new RBCs to replace those that have aged and degraded or have been lost due to hemorrhage. Normally, a steady number of RBCs is maintained in the blood by replacing deteriorated or lost RBCs on a regular basis.

A range of diseases and conditions, including those that cause severe bleeding, can impair the creation of new RBCs and/or their survival. These situations can cause an increase or decrease in the number of RBCs, as well as a change in the reticulocyte count.

Reticulocyte % higher than normal: Anemia is caused by a lack of RBCs in the blood due to acute or chronic bleeding or enhanced RBC breakdown (hemolysis). The body adjusts for this loss or responds to deficiency anemia treatment by increasing RBC production and releasing RBCs into the bloodstream before they mature. When this happens, the number and percentage of reticulocytes in the blood grows until the bone marrow's production capacity is reached or until a sufficient number of RBCs replaces those that were lost.

A lower-than-normal percentage of reticulocytes: When the bone marrow isn't working properly, RBC production can suffer. A bone marrow condition, such as aplastic anemia, can cause this. Other causes that might cause decreased production include liver cirrhosis, kidney disease, cancer treatments such as radiation or chemotherapy, a low amount of the hormone erythropoietin, or dietary shortages such as iron, vitamin B12, or folate. As old RBCs are eliminated from the blood but not entirely replaced, there are fewer RBCs in circulation, poorer hemoglobin and oxygen-carrying capacity, a lower hematocrit, and a lower number of reticulocytes.

Due to excessive RBC production by the bone marrow, both the reticulocyte and RBC counts might occasionally rise. This could be caused by increased erythropoietin production, diseases that cause chronic RBC overproduction (polycythemia vera), or cigarette smoking.

Some medications can increase or reduce the number of reticulocytes in the body.

Lab tests often ordered with a Reticulocyte Count test:

  • Complete Blood Count (CBC)
  • Red Blood Cell Count
  • Hemoglobin
  • Hematocrit
  • Blood Smear
  • Erythropoietin
  • Vitamin B12
  • Folate
  • Haptoglobin
  • G6PD
  • Iron Total
  • Iron and Total Iron Binding Capacity
  • Ferritin

Conditions where a Reticulocyte Count test is recommended:

  • Anemia
  • Bone Marrow Disorders
  • Myeloproliferative Neoplasms

How does my health care provider use a Reticulocyte Count test?

A reticulocyte test is used to assess the number and/or percentage of reticulocytes in the blood to aid in the diagnosis of red blood cell abnormalities such as anemia and bone marrow illnesses. Reticulocytes are young red blood cells that have just been created. Before being released into the circulation, they develop and mature in the bone marrow.

The reticulocyte test can be used in the following situations:

  • To help determine the reason of aberrant results on a complete blood count, RBC count, hemoglobin, or hematocrit.
  • To see if the bone marrow is appropriately functioning and reacting to the body's need for red blood cells.
  • To aid in the detection and differentiation of various kinds of anemia
  • To track how well people are responding to treatments, such as those for iron deficiency anemia.
  • To track the activity of the bone marrow after therapies like chemotherapy.
  • To keep track of how well you're doing after a bone marrow transplant.

A reticulocyte count is usually done using an automated device and can be done in conjunction with a complete blood count, which includes an RBC count, hemoglobin, and hematocrit. It is possible to report either an absolute number of reticulocytes or a percentage of reticulocytes. The number of reticulocytes is compared to the total number of red blood cells as a percentage:

[ Number of Reticulocytes / Total Red Blood Cells ] X 100 = Reticulocyte Percentage

Several more tests, in addition to a reticulocyte count, can be done to further screen someone for a disorder that affects RBC production. Here are a few examples:

  • Iron testing
  • Haptoglobin
  • G6PD
  • Erythropoietin
  • Vitamin B12 and Folate

Following up on abnormal results from early tests, a bone marrow aspiration and biopsy may be performed. This is an invasive operation that is not performed on everyone. If necessary, it can, however, supply extra information.

What do my reticulocyte count test results mean?

The results must be carefully evaluated in conjunction with the results of other tests, such as a red blood cell count, hemoglobin, hematocrit, or a complete blood count. The reticulocyte count, in general, reflects recent bone marrow activity. The results could reveal whether a disease or condition is present that is causing an elevated need for new RBCs, as well as whether the bone marrow is capable of meeting that demand. Overproduction of RBCs may be detected in some cases.

When anemia is present and the bone marrow responds adequately to the demand for more RBCs, the bone marrow will create more and allow for the early release of more immature RBCs, resulting in an increase in the number of reticulocytes in the blood.

A high reticulocyte count along with low RBCs, hemoglobin, and hematocrit may indicate the following conditions:

  • When a person bleeds, the number of reticulocytes increases after a few days to make up for the loss of red blood cells. If someone has chronic blood loss, the marrow will try to keep up with the need for new RBCs by increasing the number of reticulocytes.
  • Anemia is caused by an increase in the breakdown of RBCs in hemolytic anemia. To compensate, the bone marrow boosts RBC production, resulting in a high reticulocyte count.
  • Hemolytic illness of the newborn: Similar to hemolytic anemia, this syndrome causes an increase in RBC destruction.

For example, a low reticulocyte count with low hemoglobin, low red blood cells, and low hematocrit can be detected when:

  • Anemia due to a lack of iron
  • Folic acid deficiency or pernicious anemia
  • Aplastic anemia is a kind of anemia that occurs when the
  • Radiation therapy is a type of treatment that uses a
  • Infection or malignancy can induce bone marrow failure.
  • A low level of erythropoietin can be caused by severe kidney disease.
  • Alcoholism
  • Endocrine illness

When a person has anemia, the percentage of reticulocytes in their blood may appear to be higher than the total number of RBCs. A calculation known as a corrected reticulocyte count or reticulocyte index may be reported to get a more accurate estimate of bone marrow function. When a person's hematocrit is compared to a normal hematocrit reading, the RI is computed. The reticulocyte production index and an immature reticulocyte fraction are two more estimates that may be presented. The IRF was once known as the reticulocyte maturity index, but it is currently the most widely used phrase to describe the younger percentage of reticulocytes.

The existence of a disease or condition is indicated by the reticulocyte test, however it is not specifically diagnostic of any disease. It's a warning that more research is needed, as well as a method for monitoring therapy effectiveness.

When reticulocyte numbers increase after chemotherapy, a bone marrow transplant, or treatment for an iron, vitamin B12, or folate shortage, bone marrow RBC production is on the mend.

A high reticulocyte count can indicate an overproduction of RBCs in people who do not have anemia or have a high RBC count. This can be caused by a variety of factors, including:

  • Polycythemia vera
  • Excess erythropoietin-producing tumor

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

This assay is used to monitor exposure to arsenic, wellness, and therapy during treatment of chronic myelocytic leukemia.

CMV infections are common and usually asymptomatic. In patients who are immunocompromised, CMV may cause disseminated, severe disease. CMV may cause birth defects in a minority of infected newborns. Antibody IgG may represent prior exposure or recent infection if there is a significant change in titer between acute and convalescent specimens.

CMV infections are common and usually asymptomatic. In patients who are immunocompromised, CMV may cause disseminated, severe disease. CMV may cause birth defects in a minority of infected newborns.

Epstein-Barr Virus DNA, Real-Time PCR is useful in assessing active disease. Central nervous system infections can be diagnosed with CSF specimens.

Epstein-Barr Virus Nuclear Antigen (EBNA) Antibody (IgG)

Primary infection by EBV causes infectious mononucleosis, usually a self-limiting disease in children and young adults. Infection with EBV can cause lymphoproliferative disorders including tumors. VCA-IgG is typically detectable at clinical presentation, and persists for life. Absence of VCA-IgG usually indicates the patient is susceptible to EBV infection.

Primary infection by EBV causes infectious mononucleosis, usually a self-limiting disease in children and young adults. Infection with EBV can cause lymphoproliferative disorders including tumors. VCA-IgM is typically detectable at clinical presentation, then declines to undetectable levels within a month in young children and within 3 months in other individuals.

Test not available in the following States: CA, MD, NY, PA and RI.

Your body is a complex machine, and sometimes things can go wrong that are not easy to spot from the outside. There are some diseases, illnesses, and other conditions which require lab tests to confirm what exactly is going on inside of the body. An example of a condition that must be diagnosed through a blood test is aplastic anemia. 

What is Aplastic Anemia?

Aplastic anemia is a rare and serious disease caused by damage to bone marrow. Bone marrow is responsible for the production of new blood cells.

Blood cells die naturally after 120 days for red/white cells and every 6 days for platelets. In a healthy person, the death of a blood cell is not a concern because the bone marrow simply creates new cells to replace the dead ones.

However, when damage is done to the bone marrow, the damage prevents the bone marrow from making new blood cells, leading to a reduced blood cell count. This inability to produce new blood cells causes a wide range of symptoms and complications.

Risk Factors of Aplastic Anemia

As stated above, aplastic anemia is caused by damaged bone marrow that is unable to produce enough new blood cells. Factors that increase the risk of damaging bone marrow and developing aplastic anemia include:

  • Radiation exposure, including chemotherapy treatments
  • Autoimmune diseases
  • Pregnancy
  • Exposure to toxic chemicals or consumption of some medications
  • Family history of the disease

Aplastic anemia can develop at any age, and it occurs equally in men and women. The disease is 2-3 times more prevalent in Asian countries.

Causes of Aplastic Anemia

Possible causes of aplastic anemia include:

  • Exposure to toxins, such as benzene, arsenic, and pesticides.
  • Exposure to chemotherapy and radiation (used to treat cancer).
  • A side-effect of certain medicines, such as chloramphenicol (an antibiotic not common in the U.S.).
  • Suffering from other infectious diseases such as hepatitis and HIV.
  • Suffering from other autoimmune disorders, such as lupus and rheumatoid arthritis.
  • Pregnancy (usually temporary in nature)
  • Cancer from another part of the body has spread to the bone marrow

The cause of someone's aplastic anemia is not always known, and scientists are not sure of all the reasons the disease occurs.

Symptoms of Aplastic Anemia

The symptoms of aplastic anemia can appear at any age, and they can develop rapidly or slowly over time. Most symptoms are all associated with the loss of blood cells, and the exact symptoms depend on which blood cell types are affected. Common symptoms include:

  • Loss of red blood cells: fatigue, dizziness, shortness of breath, rapid, irregular heartbeat
  • Loss of white blood cells: reoccurring infections, lingering flu-like symptoms
  • Loss of platelets: Excessive bruising and bleeding, bleeding gums, blood in stool 

Other symptoms not directly associated with low blood counts include nausea and skin rashes. 

Diagnosis of Aplastic Anemia

Diagnosing aplastic anemia can be difficult given the varying speeds that symptoms may appear and the fact these symptoms overlap with so many other disorders. 

The most common method of confirming an aplastic anemia diagnosis is to conduct blood tests. Depending on blood test results, a doctor may also take a bone marrow sample for further testing.

Lab Tests for Aplastic Anemia

The most common blood lab tests for aplastic anemia are:

This is usually one of the first blood tests used to check for aplastic anemia. The test measures 33 different biomarkers to provide a very thorough assessment of what is in the blood. This test provides data such as:

- the amount of hemoglobin, a protein in your red blood cells that carries oxygen to your body
- the number of red blood cells and platelets
- the number and types of white blood cells

A blood smear examines the size, shape, and number of blood cells in the blood.

Treatment for Aplastic Anemia

There is no cure for aplastic anemia. There are several treatment options to relieve symptoms, depending on the exact cause, symptoms, and severity of the illness. 

Minor cases of aplastic anemia are often focused on increasing blood counts and treating anemia. Vitamins such as B12, folic acid, and iron can be increased through dietary changes, dietary supplements. Doctors can also prescribe medicines such as:

  • A man-made version of the hormone erythropoietin, which can stimulate the production of more red blood cells. 
  • Immunosuppressants to stop the immune system from attacking its own red blood cells.

In severe cases, more aggressive treatment options are considered, including:

  • Blood and plasma transfusions to provide more blood cells
  • High doses of Cyclophosphamide (a chemotherapy drug)
  • Immunosuppressive drug therapy to suppress an overactive immune system

In severe cases, and where drug therapy has failed to provide relief, a patient may have to undergo a bone marrow transplant.

Order Your Aplastic Anemia Tests with Ulta Lab Tests

If you are suffering symptoms of aplastic anemia, a lab test can help confirm or rule out an aplastic anemia diagnosis.

Ulta Lab Tests offers tests that are highly accurate and reliable, so you can make informed decisions about your health.

  • Secure and confidential results
  • No insurance referral is needed
  • Affordable pricing
  • 100% satisfaction guarantee

Order your aplastic anemia lab tests today, and your results will be provided to you securely and confidentially online in 24 to 48 hours for most tests.

Take control of your health today with Ulta Lab Tests.