ARUP's Laboratory Test Directory

Aspartate Aminotransferase, Serum or Plasma : 0020007

Mnemonic: AST

Methodology: Quantitative Enzymatic
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Plasma separator tube or serum separator tube.

Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Specimens containing sodium fluoride/potassium oxalate, EDTA, or citrate. Hemolyzed specimens. Specimens containing cellular material.

Stability (collection to initiation of testing): 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
Cross References: AST (Aspartate Aminotransferase, Serum or Plasma), SGOT (Aspartate Aminotransferase, Serum or Plasma)