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Select a body system to find tests that will help you learn more about you.

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The Iron Total and Total Iron Binding Capacity (TIBC) Test measures iron levels in blood along with the blood’s ability to transport iron. It helps diagnose iron deficiency anemia, iron overload (hemochromatosis), and monitor nutritional or chronic health conditions. Low iron or high TIBC may indicate anemia, while high iron or low TIBC can suggest overload. Doctors use this test to evaluate fatigue, weakness, or other symptoms linked to iron and metabolic health.

Serum
Serum Iron Test, Total Iron Binding Capacity Test, TIBC Test, UIBC Test

The Lipid Panel with Ratios Test measures seven key markers: total cholesterol, HDL, LDL, non-HDL cholesterol, triglycerides, Chol/HDL ratio, and LDL/HDL ratio. This advanced panel evaluates cardiovascular risk by assessing cholesterol balance and fat metabolism. Doctors use it to detect high cholesterol, atherosclerosis risk, and heart disease, and to monitor treatment. Often part of routine exams, it provides insight into long-term heart and metabolic health.

Lipid Profile Test, Cholesterol Panel Test, Lipid Blood Test

Most Popular

The Lipoprotein (a) Test measures Lp(a), a genetic form of LDL cholesterol linked to higher risk of heart disease, stroke, and atherosclerosis. Unlike standard cholesterol tests, Lp(a) levels are inherited and not easily lowered by lifestyle changes. Doctors order this test for patients with a family history of early cardiovascular disease or high cholesterol. Results help identify hidden risk, guide prevention strategies, and support heart and vascular health management.

Serum
Lipoprotein A Test, Lpa Test, Lp(a) Test

Most Popular

The Lp-PLA2 Activity Test measures lipoprotein-associated phospholipase A2 enzyme activity, a marker of vascular inflammation linked to atherosclerosis and cardiovascular disease. Elevated levels may increase risk for heart attack and stroke. Doctors order this test for patients with high cholesterol, metabolic syndrome, or other risk factors. Results provide valuable insight into arterial health, helping guide prevention, treatment, and heart disease management.

Serum
LpPLA2 Test, Ps-PLA2 Activity Test, Platelet-activating Factor Acetylhydrolase Test, PAF-AH Test, PLAC Test, Lipoprotein-Associated Phospholipase A2 Test

The Lupus Anticoagulant Evaluation test is used to screen for lupus anticoagulants, also known as antibodies with phospholipid-protein specificity.
Plasma-Unspecified Vial Pour
LA Test, LAC Test, Lupus Anticoagulant Panel Test, Lupus Inhibitor Test, LA Sensitive PTT Test, PTT-LA Test,

The Methylenetetrahydrofolate Reductase (MTHFR) DNA Mutation Analysis detects genetic variants in the MTHFR gene that affect folate metabolism and homocysteine regulation. Mutations may increase risk for blood clots, cardiovascular disease, pregnancy complications, or certain neurological conditions. Doctors use this test to evaluate unexplained blood clotting, high homocysteine levels, or family history of related disorders.

Blood
MTHFR Factor Test, MTHFR Mutation Test, MTHFR Gene Mutation Test, Methylenetetrahydrofolate Reductase Gene Test, MTHFR Disease Test

 The Myeloperoxidase Antibody test, also known as MPO Antibody test, is a blood test that measures the presence and levels of myeloperoxidase antibodies in the bloodstream. Myeloperoxidase (MPO) is an enzyme found in white blood cells called neutrophils, and it plays a crucial role in the immune system's response to infections. The test is used to detect and evaluate autoimmune conditions known as ANCA-associated vasculitis, which can cause inflammation and damage to blood vessels and various organs.
Serum

 The Myoglobin test is a laboratory test that measures the levels of myoglobin in the blood. Myoglobin is a small, oxygen-binding protein found primarily in heart and skeletal muscles. When muscle damage occurs, myoglobin is released into the bloodstream. Since myoglobin is filtered out of the blood by the kidneys, it can also appear in the urine, especially in high amounts.
Serum

The N-terminal proBNP (NT-proBNP) test is a crucial diagnostic tool used to measure the levels of N-terminal pro-brain natriuretic peptide in the blood. NT-proBNP is released by the heart in response to increased pressure and stretching of the heart muscle. This test plays a significant role in assessing cardiac health and diagnosing various heart-related conditions.
Plasma-Unspecified Vial Pour
Brain Natriuretic Peptide Test, proBNP test,

The Omega-3 and Omega-6 Fatty Acids Test measures essential fatty acids, including EPA, DHA, and arachidonic acid, to assess balance between omega-3 and omega-6 in the blood. This ratio is linked to heart health, inflammation, brain function, and metabolic wellness. Doctors use this test to evaluate diet quality, detect deficiencies or excess, and guide nutrition or supplement plans that support cardiovascular, cognitive, and overall long-term health.

OmegaCheck® Test

The Prothrombin Time with INR Test measures how long it takes blood to clot and calculates the international normalized ratio (INR) for accuracy. It is commonly used to monitor patients on blood-thinning medications like warfarin and to evaluate bleeding disorders, liver disease, or vitamin K deficiency. Doctors order this test to investigate easy bruising, frequent nosebleeds, or prolonged bleeding and to ensure safe and effective anticoagulant therapy.

Blood
PT with INR Test

The QuestAssureD™ Vitamin D 25-Hydroxy Total Test measures Vitamin D2, Vitamin D3, and total 25-hydroxy vitamin D to assess overall vitamin D status. Adequate vitamin D supports bone strength, calcium absorption, immune health, and muscle function. Low levels may cause osteoporosis, weakness, or increased disease risk, while high levels can indicate toxicity. Doctors use this test to diagnose deficiency, monitor supplementation, and evaluate metabolic and endocrine health.

Serum
Ergocalciferol Test, Vitamin D2 Test, Cholecalciferol Test, Vitamin D3 Test, Calcidiol Test, 25-hydroxyvitamin D Test, Calcifidiol Test, 25-hydroxy-vitamin D Test, Vitamin D Total Test

Most Popular

The Sed Rate Test, also called the ESR Test, measures how quickly red blood cells settle in a sample of blood. A faster rate may signal inflammation caused by infections, autoimmune diseases, arthritis, or other chronic conditions. Doctors use this test to investigate unexplained fever, joint pain, or muscle aches, and to monitor inflammatory disorders such as lupus or rheumatoid arthritis. The Sed Rate Test provides important insight into overall inflammatory activity.

Blood
Erythrocyte Sedimentation Rate Test, ESR Test, Sedimentation Rate Test, Westergren Sedimentation Rate Test

Varied

Most Popular

The Thyroid Stimulating Hormone (TSH) Test measures TSH levels in blood to assess thyroid function and diagnose hypothyroidism or hyperthyroidism. It evaluates how the thyroid controls metabolism, energy, weight, and heart rate. Doctors use the TSH test to investigate symptoms such as fatigue, hair loss, or mood changes. Frequently included in routine health exams, it is also key for monitoring thyroid disease treatment and overall endocrine balance.

Serum
Thyroid Stimulating Hormone Test, Thyrotropin Test

Serum