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Test Code AST Aspartate Aminotransferase (AST/SGOT)

Performing Laboratory

Memorial Hospital Laboratory- Automated Procedures  304-388-5953       
General Hospital Laboratory 304-388-6244
Women and Children's Hospital Laboratory 304-388-2385
Teays Valley Hospital Laboratory 304-757-1770
Cancer Center Laboratory 304-388-8317
Plateau Medical Center Laboratory 304-469-8621

Specimen Requirements

Plasma-Mint Green, Dark Green Lithium Heparin or Serum-SST gold top, red top

Allow SST or red top to completely clot      

Spin and physically separate plasma/serum from contact with cells as soon as possible

4 mL of plasma/serum (minimum 2 mL)

Specimen Rejection

  • Improperly labeled, collected, stored, and transported
  • Quantity not sufficient
  • Hemolyzed 

Storage and Stability

Room temperature 15-25oC 1 day
Refrigerated 2-8oC 4 weeks
Frozen <-20oC 1 year

Reference Values

>18 yrs 13-39 U/L
>10-18 yrs 7-35 U/L
>2-10 yrs 11-47 U/L
>1 month-2 yrs 11-57 U/L
0- 1 month 17-53 U/L

Methodology

Photometric enzymatic assay

 

Days Test Set Up and Turnaround

Monday through Sunday, Continuously

AM Collection Expected by 9AM same day
Routine Expected within 24 hrs
Stat Expected within 1 hr
Timed Expected results are test dependant

CPT Coding

84450