ARUP's Laboratory Test Directory

Aspartate Aminotransferase, Serum or Plasma : 0020007

Mnemonic: AST

Methodology: Enzymatic
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect:  One 4 mL plasma separator tube or serum separator tube.

Transport:  1 mL serum or plasma at 2-8°C. (Min: 0.2 mL) Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.2 mL serum or plasma at 2-8°C.

Remarks:  Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP.

Unacceptable Conditions:  Specimens containing sodium fluoride/potassium oxalate, EDTA, and citrate as anticoagulants, hemolyzed, or specimens containing cellular material.

Stability:  After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month
Reference Interval:
By report (reports may vary based on instrumentation).
 

CPT Code(s): 84450
 
 

 

 

 
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