The ALT (alanine aminotransferase) blood test is a laboratory test that measures the level of ALT in the blood. ALT is an enzyme that is found in the liver and is an important part of the body’s metabolism.
The ALT blood test is typically ordered as part of a routine blood panel or as part of a more comprehensive evaluation of liver function. It may also be ordered to help diagnose or monitor conditions that affect the liver, such as hepatitis, cirrhosis, and liver cancer.
To perform the ALT blood test, a healthcare provider will draw a small sample of blood, which is then sent to a laboratory for analysis. The laboratory will measure the concentration of ALT in the blood sample and report the results to the healthcare provider.
It is important to note that high levels of ALT in the blood (ALT excess) can be caused by a variety of factors, including liver disease, certain medications, and alcohol abuse. Low levels of ALT in the blood (ALT deficiency) may be due to certain medical conditions or genetic factors. It is important to discuss the results of the ALT blood test with a healthcare provider to understand the underlying cause and determine the appropriate treatment.
The Normal Range is ALT. 7 to 55 units per liter (U/L)
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