Category: Rx Lab Test (A – Z)

A computed tomography (CT) scan of the arm is an imaging method that uses x-rays to make cross-sectional pictures of the arm. How the...

An arm MRI (magnetic resonance imaging) scan uses strong magnets to create pictures of the upper and lower arm. This may include the elbow,...

Angiography uses x-rays and a special dye to see inside the arteries. Arteries are blood vessels that carry blood away from the heart. How...

Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A streptococcus bacteria. Antibodies are proteins our...

Aspergillosis precipitin is a laboratory test to detect antibodies in the blood resulting from exposure to the fungus aspergillus. How the Test is Performed A blood sample is...

An antiparietal cell antibody test is a blood test that looks for antibodies against the parietal cells of the stomach. The parietal cells make and release...

An audiometry exam tests your ability to hear sounds. Sounds vary, based on their loudness (intensity) and the speed of sound wave vibrations (tone)....

Evoked auditory potentials; Brainstem auditory evoked potentials; Evoked response audiometry; Auditory brainstem response; ABR; BAEP Brainstem auditory evoked response (BAER) is a test to...

An autoimmune liver disease panel is a group of tests that is done to check for autoimmune liver disease. An autoimmune liver disease means...

The visual field refers to the total area in which objects can be seen in the side (peripheral) vision as you focus your eyes...

Alkaline phosphatase (ALP) is an enzyme found in many body tissues such as the liver, bile ducts, bone, and intestine. There are several different...

Alkaline phosphatase (ALP) is a protein found in all body tissues. Tissues with higher amounts of ALP include the liver, bile ducts, and bone. A blood...

The aldosterone blood test measures the level of the hormone aldosterone in blood. Aldosterone can also be measured using a urine test. How the Test...

This is a test that measures the amount of amylase in urine. Amylase is an enzyme that helps digest carbohydrates. It is produced mainly in the...

Amylase is an enzyme that helps digest carbohydrates. It is made in the pancreas and the glands that make saliva. When the pancreas is diseased...

Home vision tests measure the ability to see fine detail. How the Test is Performed There are three vision tests that can be done...

A toxicology screen refers to various tests that determine the type and approximate amount of legal and illegal drugs a person has taken. How...

Acid mucopolysaccharides is a test that measures the number of mucopolysaccharides released into the urine either on 1 episode or over a 24-hour period....

The ammonia test measures the level of ammonia in a blood sample. How the Test is Performed A blood sample is needed. How to Prepare for...

The ammonia test measures the level of ammonia in a blood sample. How the Test is Performed A blood sample is needed. How to Prepare for...