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Test ID ALT Alanine Aminotransferase (ALT) (GPT), Serum

Useful For

Diagnosis and monitoring of liver disease associated with hepatic necrosis

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Necessary Information


Patient's age and sex are required.



Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.


Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  7 days

Reference Values

Males

≥1 year: 7-55 U/L

Reference values have not been established for patients who are <12 months of age.

Females

≥1 year: 7-45 U/L

Reference values have not been established for patients who are <12 months of age.

Day(s) Performed

Monday through Sunday

CPT Code Information

84460

Report Available

Same day/1 to 2 days

Reject Due To

Gross hemolysis Reject

Forms

If not ordering electronically, complete, print, and send a Kidney Transplant Test Request with the specimen.