AST

SIM

12240 

CPT

84450 

Synonyms

SGOT (Glutamic Oxaloacetate)   AST = Aspartate aminotransferase 

Specimen Type

Plasma or serum 

Container

3.5 ml Green - Lithium heparin plasma separator 
4.0 ml Gold-top serum separator

Collection Instructions

None

Volume

2 ml plasma or serum 
Min: 0.5 ml

Additional Information

None

Patient Preparation

None

Specimen Processing Instructions

Plasma:  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes 
Serum:  Allow to clot.  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes 
Centrifuge within 2 hours of collection.

Transport Requirements

Refrigerated

Specimen Stability

Room temperature:  8 hours  Refrigerated:  5 days 

Rejection Criteria

If not centrifuged within 2 hours of collection.

Reference Range

12 - 33 IU/L

Critical Value

None 

Test Includes

AST 

Methodology

Enzymatic Rate method 

Testing Frequency

Daily, Monday - Sunday 

Reviewed By

Crystal Killian

Reviewed Date

3/17/2021

Supplemental