All Digestive System Tests

The Fecal Globin by Immunochemistry Test detects hidden (occult) blood in stool using antibodies that identify human globin protein. This test helps screen for colorectal cancer, polyps, ulcers, and gastrointestinal bleeding. Doctors order it when patients have anemia, abdominal pain, or changes in bowel habits. Results provide early detection of digestive tract bleeding, guiding further evaluation with colonoscopy or other diagnostic procedures.

The Ferritin Test measures ferritin, a protein that stores iron in the body, to evaluate iron levels and detect deficiency or overload. It helps diagnose anemia, iron deficiency, hemochromatosis, and chronic disease-related inflammation. Doctors often order the ferritin test to investigate fatigue, weakness, or unexplained symptoms. It is also used to monitor iron supplementation, treatment effectiveness, and overall iron metabolism health.

The Antioxidants Micronutrients Panel measures key antioxidants; Alpha Tocopherol, Beta Gamma Tocopherol, Coenzyme Q10, Vitamin A, and Vitamin C to evaluate the body’s defense against oxidative stress. These nutrients support immune health, cellular protection, energy production, and overall wellness. The test helps detect deficiencies or imbalances that may affect long-term health and disease prevention.

Patient must be 18 years of age or older.

The Folate Micronutrient Test measures blood folate levels to assess nutritional status and detect deficiencies. Folate is essential for DNA synthesis, red blood cell production, and proper fetal development. This test helps identify dietary insufficiency, malabsorption issues, or increased nutrient needs, supporting the diagnosis and management of anemia, pregnancy health, and overall wellness.

Patient must be 18 years of age or older.

The Folate Serum Test measures folate (vitamin B9) levels in blood to evaluate nutritional status and overall health. Low folate may cause anemia, fatigue, weakness, or pregnancy complications, while high levels may reflect supplementation. Doctors order this test to investigate unexplained anemia, monitor prenatal health, or assess dietary deficiencies. It provides valuable insight into red blood cell production, metabolism, and nutritional balance.

The Gliadin Deamidated Peptide IgA Antibody Test detects IgA antibodies against deamidated gliadin peptides, highly specific markers for celiac disease. Elevated levels indicate an immune reaction to gluten and may suggest intestinal damage. Doctors use this blood test to help diagnose celiac disease, evaluate unexplained digestive issues, or monitor adherence to a gluten-free diet. It is often ordered alongside tTG IgA and total IgA testing for accuracy.

The Gliadin Deamidated Peptide IgG IgA Antibodies Test detects both IgG and IgA antibodies against deamidated gliadin peptides, highly specific markers for celiac disease. Elevated results indicate an autoimmune reaction to gluten that can damage the small intestine. Doctors use this test to confirm suspected celiac disease, evaluate unexplained digestive issues, or monitor compliance with a gluten-free diet, often alongside tTG and other celiac antibody tests.

The Gliadin Deamidated Peptide IgG Antibody Test detects IgG antibodies to deamidated gliadin peptides, helping diagnose celiac disease in patients with IgA deficiency or gluten-related disorders. Elevated levels indicate an autoimmune response to gluten that may damage the small intestine. Doctors use this blood test to evaluate persistent digestive symptoms, confirm celiac disease, or monitor dietary compliance with a gluten-free diet for improved health outcomes.

The Glucagon Test evaluates hormone levels that regulate glucose by stimulating the liver to release stored sugar. Elevated or low glucagon may indicate diabetes, hypoglycemia, metabolic disorders, or pancreatic disease. This test provides insight into endocrine activity, glucose balance, and systemic health conditions related to energy metabolism and hormonal function.

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 Glucose-6-Phosphate Dehydrogenase (G6PD) Test measures enzyme activity to detect G6PD deficiency, a genetic condition that can lead to hemolytic anemia when exposed to certain foods, infections, or medications. Doctors order this test to assess unexplained anemia, jaundice, or family history of G6PD deficiency. Results help identify individuals at risk for red blood cell breakdown, guiding treatment, prevention, and safe medication use.

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 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 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 Hemoglobin A1c with eAG Test measures average blood sugar levels over the past 2–3 months and provides an estimated average glucose (eAG) value for easier understanding. It is widely used to screen, diagnose, and monitor diabetes and prediabetes. Doctors use this test to evaluate long-term glucose control, adjust treatment, and reduce the risk of complications such as neuropathy, kidney disease, and heart problems linked to poor blood sugar management.

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 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.