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Test Code LAB131 Aspartate Aminotransferase (AST)

Performing Lab

Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital

Ordering Recommendations

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

Included in CMP, Hepatic Panel & Liver Panel.

Collect

Serum or Plasma

Collection Device

Lithium Heparin Green Top Tube or Gold Top Tube

Specimen Handling

Sample must be separated within 2 hours of collection.

Stability (from collection to initiation)

Room Temp

 1 day
Refrigerated 4 weeks
Frozen 1 year

Storage/Transport Temperature

Room Temp, Refrigerated or Frozen

Specimen Volume

5 mL

Minimum Requirements

1 mL

Remarks

TURN AROUND TIME

STAT

 1 Hour
Routine

8 Hours

Methodology

Enzymatic Rate Absorbance

Start Date

9/13/2017

Last Review Date

06/20/2025

7/3/25 AP