Test Overview
Test Methodology

Rate (NADH measurement at 340 nm)

Test Usage

Liver function test; frequently elevated in cardiac disease

Reference Range *

<1 year: <=70 IU/L, 1-12 years: <=60 IU/L, 12-150 years: <34 IU/L.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
AST
MiChart Code
AST (Aspartate Amino Transferase)
Synonyms
  • AST
  • SGOT
Laboratory
Chemical Pathology
Section
Automation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Grossly hemolyzed, icteric or lipemic samples are not acceptable for testing.

Alternate Specimen
Red top or Green top (sodium or lithium heparin) tube. [rev 11/09]
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
84450
Fee Code
20512
LOINC
1916-6