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Test Code LAB131 Aspartate Aminotransferase (AST)

Department

CHEMISTRY

Primary Collection Container

Green PST (Lithium Heparin)

Alternate Collection Container

Green Microtainer PST

Transport

Refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge, refrigerate and separate from cells if not drawn in a gel tube.

Stability

Refrigerated: 7 days

Frozen: 3 months

Minimum Testing Volume

0.5 mL

Reference Range

Male

0-6 years 15-63 U/L

6-10 years 15-44 U/L

10-20 years 3-36 U/L

>20 years 3-48 U/L

Female

0-6 years 10-70 U/L

6-10 years 13-34 U/L

10-20 years 4-35 U/L

>20 years 3-35 U/L

Methodology

Cobas c503 pyridoxal phosphate activation in human serum and plasma.

Performed

24 hours

Reported

As completed

CPT Codes

84450

Unacceptable Conditions

Gross hemolysis.