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Test ID AST Aspartate Aminotransferase (AST) (GOT), Serum

Useful For

Diagnosing and monitoring liver disease, particularly diseases resulting in a destruction of hepatocytes

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Necessary Information


Patient's age and sex are required.



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Submission Container/Tube: Plastic vial

Collection Instructions:

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

2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.


Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  30 days
  Ambient  7 days

Reference Values

Males

0-11 months: not established

1-13 years: 8-60 U/L

≥14 years: 8-48 U/L

Females

0-11 months: not established

1-13 years: 8-50 U/L

≥14 years: 8-43 U/L

CPT Code Information

84450

Report Available

Same day/1 to 2 days

Reject Due To

Gross hemolysis Reject

Day(s) Performed

Monday through Sunday

Forms

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