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HelpTest Code LAB131 AST
Synonym
- AST
Specimen Required
Preferred Container/Tube: Mint Green Top
Acceptable Container/Tube: Mint Green Top, Gold SST Top
Specimen Volume: 3 mL
Specimen Minimum Volume: 1 mL
Specimen Stability Information
Ambient: 24 hours
Refrigerated: 4 weeks
Rejected Due To
- Gross hemolysis
- Gross icterus
- Quantity not sufficient
Reference Values
| FEMALE | MALE |
|---|---|
| 0-30 days: 0-49 U/L 31-365 days: 0-80 U/L 1-3 years: 0-70 U/L 4-6 years: 0-60 U/L 7-9 years: 0-42 U/L 10-12 years: 0-38 U/L 13-15 years: 0-33 U/L 16-18 years: 0-31 U/L 19+ years: 10-39 U/L |
0-30 days: 0-52 U/L 31-365 days: 0-66 U/L 1-3 years: 0-57 U/L 4-6 years: 0-49 U/L 7-9 years: 0-43 U/L 10-12 years: 0-39 U/L 13-15 years: 0-40 U/L 16-18 years: 0-40 U/L 19+ years: 10-39 U/L |
Cautions
AST may be significantly falsely elevated in the presence of hemolysis.
Method Description
Photometric rate with aspartate and α-oxoglutarate to form pyruvate and glutamate. This assay does not contain pyridoxyl-5-phosphate.
Performing Lab
Clinical Lab UH
Clinical Lab University East
Clinical Lab James
Clinical Lab Martha Morehouse
Clinical Lab Spielman
Clinical Lab West Campus
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 day
Reporting Name
AST
CPT Code Information
84450
LOINC Code Information
1920-8