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Test Code AST Aspartate Aminotransferase

Performing Laboratory

ChristianaCare:

  • Newark Campus
  • Middletown Campus
  • Helen Graham Cancer Center
  • Wilmington Campus

Methodology

Enzymatic/Colorimetric

Specimen Requirements

Container/Tube:  Preferred: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube

Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube

Specimen:  Full tube
Collection Instructions:  For pediatrics, draw blood in a 0.5-mL green-top MICROTAINER®.

Note:  Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, or financial number. Date and time of draw, collector’s initials, and type of specimen are also required.

Reference Values

11-39 U/L

Day(s) Test Set Up

Monday through Sunday

Routine Turnaround Time:  8 hours

STAT Turnaround Time:  1 hour