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Test Code AST Aspartate Aminotransferase (AST), Plasma or Serum

Additional Codes

  • Expanse Test Name: Aspartate Amino Transferase,S
  • Medinet Ref Code:AST
  • OV Code: CHEM*AST

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

NADH Oxidation

Specimen Requirements

Separated specimens may be stored for up to 3 days at 20 – 25°C or for up to 7 days at 2 - 8°C.

  • Freeze samples for up to 30 days at -20°C.

Submit only 1 of the following specimens:
 
PlasmaDraw blood in a green-top (lithium heparin) plasma gel tube(s). (Hemolyzed specimen is not acceptable.) Spin down and send 1 mL of lithium heparin plasma refrigerated.
Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
 
Serum
Draw blood in a serum gel tube(s). (Hemolyzed specimen is not acceptable.) Spin down and send 1 mL of serum refrigerated.
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

 

Reference Values

Males:  10-40 U/L

Females:  10-30 U/L

 

Samples with results less than 8 U/L will be reported as “< 8 U/L.”

Samples with results greater than 6000 U/L will be reported as “ > 6000 U/L.”

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

CPT: 84450

LOINC: 1920-8