Alanine aminotransferase blood test
Normal Reference Range
0 – 15 Yrs = 8 – 50 IU/L
>15 Yrs = 5 – 40 IU/L
Test Information
The enzyme alanine transferase is involved in the alanine amino acid’s metabolism. Although ALT is active in a variety of tissues, the liver has the most of it. The enzyme is released into the blood when the liver is injured.
Clinical Indications
This test might be requested for several reasons including suspected symptoms of liver disease or damage or lack of blood flow to the liver or certain medications or poisons.
Sample Required
5mL serum sample tube is required for the ALT blood test
Min. sample volume
0.5mL
Special Instructions and Precautions
Not applicable
Time Limits For Retrospective Testing
5 days
Any factors affecting the test
Not applicable
Turnaround Time
4 hours
Referral centre (if applicable)
Not applicable
Test Code
ALT