All Digestive System Tests

The Glucose Plasma Test measures the amount of glucose in the blood to assess how the body regulates sugar. Abnormal results may indicate diabetes, prediabetes, hypoglycemia, or other metabolic disorders. Doctors order this test for patients with symptoms like fatigue, excessive thirst, or frequent urination. It is also commonly used for routine health screening, monitoring diabetes treatment, and guiding lifestyle or medication adjustments.

The Glucose Random Test evaluates glucose levels in the blood without requiring fasting, making it useful for detecting abnormal sugar regulation. Elevated or low results may suggest diabetes, prediabetes, or hypoglycemia. This test supports assessment of metabolic function, carbohydrate processing, and systemic health, offering insight into symptoms like thirst, frequent urination, or unexplained fatigue.

The Glucose Test measures blood sugar levels to evaluate energy metabolism and screen for diabetes or prediabetes. Abnormal glucose may indicate hyperglycemia, hypoglycemia, or metabolic disorders. Doctors use this test during routine exams, to investigate symptoms like fatigue, excessive thirst, or frequent urination, and to monitor treatment for diabetes. It provides essential insight into how the body regulates blood sugar and overall metabolic health.

The Haptoglobin Test measures levels of haptoglobin, a protein produced by the liver that binds free hemoglobin released from red blood cells. Low levels may indicate hemolytic anemia, liver disease, or red blood cell destruction, while elevated levels may occur with inflammation or tissue damage. Doctors use this blood test to help diagnose anemia causes, assess liver function, and monitor conditions affecting red blood cell health.

The Heavy Metals 24-Hour Urine Test Panel with Cadmium measures excretion of toxic metals including lead, arsenic, mercury, and cadmium. Using a 24-hour urine collection, it helps assess acute or chronic exposure from environmental, dietary, or occupational sources. Elevated levels may be linked to kidney damage, neurological changes, or cardiovascular risk. Results support evaluation of toxic metal burden and exposure history.

The Helicobacter pylori Antigen Stool Test detects H. pylori proteins in stool to diagnose active infection. H. pylori is a common cause of gastritis, ulcers, and increased stomach cancer risk. Doctors order this test for patients with abdominal pain, nausea, bloating, or indigestion. Noninvasive and accurate, results confirm active infection and are also used to monitor treatment effectiveness and eradication of H. pylori bacteria.

The Helicobacter pylori Urea Breath Test detects H. pylori infection, a common cause of ulcers and gastritis. After drinking a urea solution, breath samples are analyzed for carbon dioxide changes caused by the bacteria. A positive result indicates active infection, while a negative shows no evidence of H. pylori. Doctors use this noninvasive test to diagnose infection, confirm eradication after treatment, and monitor gastrointestinal health.

The Hemoglobinopathy Evaluation screens for abnormal hemoglobin variants and thalassemias by analyzing the types and amounts of hemoglobin in blood. This test helps diagnose sickle cell disease, beta thalassemia, alpha thalassemia, and other inherited disorders affecting red blood cells. Doctors use it to investigate anemia, unexplained blood abnormalities, or family history of hemoglobinopathies, guiding diagnosis, genetic counseling, and treatment planning.

The Hemogram and Differential Test provides a detailed analysis of blood health by measuring red blood cells, white blood cells, hemoglobin, hematocrit, and platelets. The differential count breaks down types of white blood cells, including neutrophils, lymphocytes, monocytes, eosinophils, and basophils. This test helps detect anemia, infections, immune response, clotting disorders, and other hematologic or systemic conditions.

The Hemogram Test provides a detailed blood profile including WBC, RBC, hemoglobin, hematocrit, red blood cell indices (MCV, MCH, MCHC, RDW), plus platelets and MPV. It assists in detecting anemia type, infection, hydration status, or bone marrow issues. This test offers insight into oxygen delivery, clotting status, immune function, and systemic wellness.

The Histamine Plasma Test measures histamine levels in the blood to help evaluate allergic reactions, mast cell disorders, or other conditions linked to abnormal histamine release. Elevated levels may indicate allergies, mastocytosis, or anaphylaxis, while low levels can affect digestive and immune function.

The HLA (Human Leukocyte Antigen) Typing for Celiac Disease test is a genetic test that identifies specific HLA gene variants associated with an increased risk of developing celiac disease. Celiac disease is an autoimmune disorder triggered by the ingestion of gluten, a protein found in wheat, barley, and rye. This test aids in assessing the genetic predisposition to celiac disease.

The High-Sensitivity C-Reactive Protein (hs-CRP) Test measures very low levels of CRP in blood to evaluate inflammation and cardiovascular risk. Elevated hs-CRP may indicate increased risk for heart disease, heart attack, or stroke even before symptoms appear. Doctors use this test along with cholesterol and other markers to assess overall heart health, guide prevention strategies, and monitor treatment. It also helps evaluate chronic inflammation and metabolic conditions.

The Hypersensitivity Pneumonitis Screen detects IgG precipitins to inhaled antigens—such as Aspergillus fumigatus, Micropolyspora faeni, and pigeon serum—to support evaluation of hypersensitivity pneumonitis. Positive precipitins help identify antigen sensitization linked to interstitial lung inflammation and guide further diagnostic workup.

The IA-2 Antibody Test measures autoantibodies against the islet antigen-2 protein, associated with pancreatic beta cell destruction in type 1 diabetes. Positive IA-2 antibodies can help identify autoimmune activity before clinical onset, supporting risk assessment, early diagnosis, and monitoring of disease progression in individuals with suspected or confirmed autoimmune diabetes.

The IgA Subclasses Panel evaluates IgA1 and IgA2 subclasses, which are critical for mucosal defense and immune balance. Deficiencies may increase susceptibility to sinus, lung, or digestive infections and may also be linked to autoimmune disease. This test supports assessment of antibody function, systemic health, and conditions tied to mucosal immunity and immune dysregulation.

The Immunoglobulin A (IgA) Test measures IgA antibody levels in blood to evaluate immune system health and mucosal defense in the respiratory and digestive tracts. Low IgA may indicate immune deficiency, celiac disease, or recurrent infections, while high levels may suggest autoimmune disorders, liver disease, or chronic inflammation. Doctors use this test to assess unexplained illness or immune imbalance. Results provide key insight into antibody function and overall immunity.

The Immunoglobulin E (IgE) Test measures IgE antibody levels in blood to evaluate allergic reactions, asthma, and immune response. Elevated IgE may indicate allergies to food, pollen, or other triggers, as well as eczema or parasitic infections. Doctors order this test to investigate symptoms like hives, sneezing, or wheezing and to guide allergy treatment. Results provide vital insight into immune health, allergic sensitivity, and overall diagnostic care.

The IgG Subclasses Panel measures four IgG antibody subclasses (IgG1, IgG2, IgG3, IgG4) to assess immune system function. Abnormal levels may indicate primary immunodeficiency, recurrent infections, autoimmune disease, or allergic conditions. Doctors order this test for patients with chronic sinus, lung, or ear infections or suspected immune imbalance. Results provide key insight into antibody response, guiding diagnosis, treatment, and long-term immune monitoring.

The Immunoglobulin G (IgG) Test measures IgG antibody levels in blood to assess immune system function and long-term response to infections. Low IgG may indicate immune deficiencies or recurrent infections, while high levels may signal chronic inflammation, autoimmune disease, or certain infections. Doctors use this test to evaluate unexplained illness, monitor immune disorders, or assess overall immunity. Results provide vital insight into immune health and disease management.

The Immunoglobulin M (IgM) Test measures IgM antibody levels in blood to evaluate immune response and early defense against infections. High IgM may indicate recent or acute infections, autoimmune disease, or certain blood disorders, while low levels may suggest immune deficiency. Doctors order this test to investigate recurrent infections, unexplained inflammation, or suspected immune problems. Results provide vital insight into antibody health, immune status, and diagnostic care.

The Immunofixation Serum Test identifies abnormal proteins in the blood called monoclonal immunoglobulins, often linked to multiple myeloma, Waldenström macroglobulinemia, or other plasma cell disorders. Physicians use this test to detect, classify, and monitor abnormal antibody production. Results help confirm suspected conditions, assess disease progression, and guide ongoing management of disorders affecting immune system function.