All Heart and Cardiovascular Tests

Heart and cardiovascular tests give you a clear picture of the factors that drive long-term risk and day-to-day symptoms. These labs evaluate cholesterol patterns and particle numbergenetic lipoproteinsinflammationblood-sugar controlkidney health, and cardiac-strain or injury markers.

Use this page to build a right-sized panel. Start with a standard lipid panel and A1c or fasting glucose, then refine risk with ApoB (particle number), lipoprotein(a) [Lp(a)] (genetic risk), and hs-CRP&... See more

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The Trimethylamine N-Oxide (TMAO) Test measures TMAO levels in blood to assess cardiovascular and metabolic risk. TMAO is produced when gut bacteria metabolize nutrients like choline, carnitine, and betaine from foods such as red meat and eggs. Elevated levels are linked to heart disease, stroke, kidney dysfunction, and metabolic disorders. Doctors order this test to evaluate cardiovascular risk and guide lifestyle, diet, or treatment strategies.

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Also Known As: Trimethylamine N-Oxide Test

The Total Glutathione Test measures glutathione, a key antioxidant that protects cells from oxidative stress and supports liver detoxification, immune defense, and cellular repair. Low levels may indicate chronic illness, toxin exposure, poor nutrition, or high oxidative stress, while high levels may reflect supplementation. Doctors use this test to assess antioxidant capacity, monitor therapy, and guide treatment for overall metabolic and immune health.

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The Transferrin Test measures transferrin, a blood protein that transports iron, to evaluate iron status and nutritional health. High levels may suggest iron deficiency anemia, while low levels may indicate liver disease, malnutrition, or chronic illness. Doctors use this test alongside iron and TIBC to investigate fatigue, weakness, or anemia symptoms. Results provide vital insight into iron balance, red blood cell production, and overall metabolic function.

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The Triglycerides Test measures triglyceride levels in blood to evaluate heart health and metabolic function. High levels may increase risk for cardiovascular disease, atherosclerosis, or pancreatitis, while low levels may reflect nutritional issues. Doctors use this test as part of lipid screening to assess patients with obesity, diabetes, or high cholesterol. Results provide vital insight into fat metabolism, cardiovascular risk, and overall wellness management.

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Also Known As: TG Test, TRIG Test

The Troponin I Test measures levels of cardiac troponin I in blood to help diagnose heart attack, myocardial injury, and acute coronary syndrome. Elevated levels indicate heart muscle damage from blocked arteries, inflammation, or other cardiac stress. Doctors order this test for patients with chest pain, shortness of breath, or suspected heart disease. Results provide critical insight for early detection, treatment decisions, and ongoing heart health monitoring.

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Also Known As: TnI Test, cTnI Test, Cardiac Troponin Test

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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.

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Also Known As: Thyroid Stimulating Hormone Test, Thyrotropin Test

The Blood Urea Nitrogen (BUN) Test measures urea nitrogen levels in blood to assess kidney function and how well the body removes waste. Elevated BUN may indicate kidney disease, dehydration, heart failure, or high protein intake, while low levels may suggest liver disease or malnutrition. Doctors order this test to evaluate fatigue, swelling, or abnormal lab results. Results help diagnose kidney and liver conditions and guide treatment decisions.

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Also Known As: BUN Test, Blood Urea Nitrogen Test

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The Uric Acid Test measures uric acid levels in blood to assess kidney function and detect gout, a form of arthritis caused by uric acid buildup. High levels may also signal kidney disease, kidney stones, or metabolic disorders, while low levels can occur with liver disease. Doctors use this test to investigate joint pain, swelling, or frequent urination, and to monitor treatment for gout, kidney stones, or chemotherapy-related complications.

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Also Known As: Serum Urate Test

The Urinalysis Complete Test evaluates urine for physical, chemical, and microscopic properties to assess kidney health, urinary tract infections, diabetes, and metabolic disorders. It measures appearance, concentration, pH, protein, glucose, ketones, blood, bilirubin, nitrites, leukocyte esterase, and microscopic cells or crystals. Doctors use this test in routine exams, to diagnose urinary symptoms, and to monitor chronic kidney or metabolic disease.

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Also Known As: Urine Analysis Test, UA Test, Complete Urinalysis Test

The Protein Total Random Urine Test measures the amount of protein in a single urine sample to evaluate kidney function and detect disorders. Elevated protein levels (proteinuria) may indicate kidney disease, diabetes, hypertension, or urinary tract conditions. Doctors use this test to screen for kidney damage, monitor chronic disease, or investigate unexplained swelling, providing an important tool for early detection and treatment planning.

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The Vascular Endothelial Growth Factor (VEGF) Test measures VEGF levels in blood to assess abnormal blood vessel growth and vascular health. Elevated VEGF may be associated with cancers, macular degeneration, diabetic retinopathy, or inflammatory disorders. Doctors use this test to evaluate angiogenesis activity, investigate unexplained vision changes or tumor growth, and guide treatment strategies for cancer or vascular-related conditions.

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Also Known As: VEGF Test

The Vitamin B12 Micronutrient Test measures blood levels of vitamin B12, essential for red blood cell production, nerve health, and DNA synthesis. Deficiency can cause anemia, fatigue, neurological issues, and cognitive changes. This test helps identify dietary deficiencies, absorption problems, or related health conditions, supporting diagnosis and ongoing management of overall wellness.

Patient must be 18 years of age or older.
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Also Known As: B12 Test, Cobalamin Test

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The Vitamin B12 Test measures cobalamin levels in blood to evaluate nutritional health, red blood cell production, and nervous system function. Low B12 can cause anemia, fatigue, weakness, memory problems, and nerve damage, while high levels may indicate liver or kidney disease. Doctors use this test to detect B12 deficiency, monitor treatment, and assess malabsorption conditions like pernicious anemia, Crohn’s disease, or celiac disease.

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Also Known As: B12 Test, Cobalamin Test

The Vitamin B12 and Folate Panel Test measures blood levels of vitamin B12 and folate to evaluate nutritional status, red blood cell production, and nervous system health. Deficiencies may cause anemia, fatigue, weakness, neuropathy, or cognitive decline, while elevated levels can indicate liver or kidney disease. Doctors use this panel to diagnose deficiency, monitor therapy, and assess absorption disorders such as pernicious anemia, Crohn’s disease, or celiac disease.

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Also Known As: Cobalamin and Folic Acid Test, Vitamin B12 and Vitamin B9 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.

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Also Known As: Vitamin D Test, 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

The VLDL Cholesterol Test measures very low-density lipoprotein cholesterol, which carries triglycerides in the blood. High VLDL levels are linked to heart disease, atherosclerosis, and metabolic syndrome. Doctors order this test as part of a lipid panel to assess cardiovascular risk, monitor treatment, or evaluate high triglycerides. Results provide critical insight into lipid metabolism, helping guide lifestyle changes, therapy, and long-term heart health management.

Also Known As: VLDL Test, VLDL-C Test, Very Low-Density Lipoprotein Cholesterol Test

The von Willebrand Factor Antigen Test measures the amount of von Willebrand factor, a blood protein essential for clotting. Low levels may indicate von Willebrand disease, the most common inherited bleeding disorder, while elevated levels can occur with inflammation or pregnancy. Doctors use this test to evaluate unexplained bleeding, frequent nosebleeds, or heavy menstrual periods and to guide diagnosis and management of clotting disorders.

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Also Known As: VWF Ag Test, VWF RCo Test, von Willebrand Panel Test, Ristocetin Cofactor Test

The Zinc RBC Test measures zinc levels inside red blood cells, providing a more accurate reflection of long-term zinc status than serum tests. Zinc is vital for immune defense, wound healing, growth, and enzyme function. Deficiency may cause hair loss, poor healing, or weakened immunity, while excess may be toxic. Doctors order this test to evaluate nutritional status, chronic illness, or suspected deficiency. Results guide supplementation and overall health management.

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Also Known As: Zn RBC Test, Zn Test

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The Cholesterol and Lipids Test measures Cholesterol, Total; HDL; LDL; Non-HDL; Triglycerides; and the Chol/HDLC Ratio to assess heart health and cardiovascular risk. High LDL or triglycerides and low HDL may indicate increased risk of heart disease or stroke. Doctors use this test to monitor cholesterol levels, evaluate therapy, and guide lifestyle or treatment decisions. It provides vital insight into lipid balance and long-term cardiovascular wellness.


One person dies every 36 seconds in the United States from cardiovascular disease.

That may seem like a shocking statistic, but what's more surprising is that cardiovascular disease is also the leading cause of death in the US.

Thankfully, by utilizing blood testing for cardiovascular diseases, you can learn your risk factors and make changes in your life to help prevent future heart problems.

So, what is cardiovascular disease, and which heart and cardiovascular tests are used to help diagnose it? Keep reading to learn more about this deadly disease and how to prevent it.

What is Heart and Cardiovascular Disease?

Cardiovascular disease is a type of disease that affects the heart muscle or blood vessels. Heart and Cardiovascular Disease refers to several different conditions, such as heart failure, stroke, heart attack, and more. The most common type of cardiovascular disease in the US is Coronary Artery Disease.

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