Category: Rx Lab Test (A – Z)

Agglutinins are antibodies that cause the red blood cells to clump together. Cold agglutinins are active at cold temperatures. Febrile (warm) agglutinins are active at normal...

A computed tomography (CT) scan of the heart is an imaging method that uses x-rays to create detailed pictures of the heart and its...

Alpha-fetoprotein (AFP) is a protein produced by the liver and yolk sac of a developing baby during pregnancy. AFP levels go down soon after...

Sputum stain for mycobacteria is a test to check for a type of bacteria that cause tuberculosis and other infections. How the Test is...

The ACTH test measures the level of adrenocorticotropic hormone (ACTH) in the blood. ACTH is a hormone released from the pituitary gland in the...

Acetylcholine receptor antibody is a protein found in the blood of most people with myasthenia gravis. The antibody affects a chemical that sends signals from nerves...

The ACTH test measures the level of adrenocorticotropic hormone (ACTH) in the blood. ACTH is a hormone released from the pituitary gland in the...

Dopamine-urine test; Epinephrine-urine test; Adrenalin-urine test; Urine metanephrine; Normetanephrine; Norepinephrine-urine test; Urine catecholamines; VMA; HVA; Metanephrine; Homovanillic acid (HVA) Catecholamines are chemicals made by...

This test measures the levels of catecholamines in the blood. Catecholamines are hormones made by the adrenal glands. Catecholamines are more often measured with...

An MIBG scintiscan is a type of imaging test. It uses a radioactive substance (called a tracer). A scanner finds or confirms the presence...

Anti-DNase B is a blood test to look for antibodies to a substance produced by Group A Streptococcus. This is the bacteria that causes strep throat. When...

The thallium stress test is a nuclear imaging method that shows how well blood flows into the heart muscle, both at rest and during...

Partial thromboplastin time (PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if...

Dexamethasone suppression test measures whether adrenocorticotrophic hormone ( ACTH ) secretion by the pituitary can be suppressed. How the Test is Performed During this test, you...

The ACTH stimulation test measures how well the adrenal glands respond to adrenocorticotropic hormone ( ACTH ). ACTH is a hormone produced in the pituitary gland...

The ACTH test measures the level of adrenocorticotropic hormone (ACTH) in the blood. ACTH is a hormone released from the pituitary gland in the...

The growth hormone suppression test determines whether growth hormone production is being suppressed by high blood sugar. How the Test is Performed At least...

The acid-fast stain is a laboratory test that determines if a sample of tissue, blood or other body substance is infected with the bacteria...

The Bernstein test is a method to reproduce symptoms of heartburn. It is most often done with other tests to measure esophageal function. How the Test...

The acid loading test (pH) measures the ability of the kidneys to send acid to the urine when there is too much acid in...