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Test Code 62870837 AST

Performing Laboratory

Torrance Memorial Laboratories

Specimen Requirements

Submit only 1 of the following specimens:

 

Hospital Preferred Specimen Type: Plasma

Container/Tube: Lithium heparin gel

 

Outreach Preferred Specimen Type: Serum

Container/Tube: Serum gel

 

Spin Instructions:

Serum gel:  Allow to sit for 30 minutes prior to spinning.  Spin within 2 hours of collection.

Heparin plasma: Spin within 45 minutes of collection.   

Also acceptable:  Red top tube

Specimen Transport Temperature

Ambient

 

Storage Temp Stability: 
Room Temperature:  4 days
Refrigerated Temperature: 7 days

Methodology

Enzymatic

Reference Range

New reference range effective 2/18/2025

 

≤ 43 U/L

Interpretive Data

Testing performed using regents supplemented with P-5’P based on the optimized formula recommended by the IFCC. New Reference Range effective 2/18/2025.

Day(s) Test Set up/TAT

Performed:

Daily

Available STAT

TAT:

STAT: <1 hr

Routine: < 4 hrs

Aliases

SGOT

Aspartate Aminotransferase

CPT Code

84450