Because the doctor is concerned about something the person has.
C -scientific research
This will show if it is true or just being endorsed.
Answer:
Biology is the study of living organisms utilizing the scientific method. Biology examines the structure, function, growth, origin, evolution, and distribution of living things.
An alanine aminotransferase (ALT) test measures the amount of this enzyme in the blood. ALT is found mainly in the liver, but also in smaller amounts in the kidneys camera.gif, heart, muscles, and pancreas camera.gif. ALT was formerly called serum glutamic pyruvic transaminase (SGPT).
ALT is measured to see if the liver is damaged or diseased. Low levels of ALT are normally found in the blood. But when the liver is damaged or diseased, it releases ALT into the bloodstream, which makes ALT levels go up. Most increases in ALT levels are caused by liver damage.
The ALT test is often done along with other tests that check for liver damage, including aspartate aminotransferase (AST), alkaline phosphatase, lactate dehydrogenase (LDH), and bilirubin. Both ALT and AST levels are reliable tests for liver damage.
