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Aspartate transaminase, Plasma / Serum

Item Value
Approval req'd? No
Available Stat? Yes
Test code AST
Performed by Parnassus, Mission Bay & Mt. Zion Chemistry
In House Availability Test available 24 hours per day 7 days per week
Method Spectrophotometric, kinetic (non-activated alpha-ketoglutarate/NADH)
Container type Light green top preferred, Gold top acceptable
Amount to Collect 1 mL blood
Click here for Microdetermination info
Sample type Plasma or serum
Preferred volume 0.5 mL plasma or serum
Min. Volume 0.2 mL plasma or serum
Click here for Microdetermination info
Units U/L
Normal range
0-7 days 24-100
8-30 days 20-72
1 month - 11 months 13-65
1 year - 5 years 18-63
≥ 6 years 17-42

1. Normal range for infants 0-1 year adapted from "Pediatric Reference Intervals", 6th edition, AACC Press, 2007, method 1.
2. Normal range for 1 to 6 year old children adapted from Beckman Coulter's "Pediatric Reference Range Guidelines for Synchron Systems" Bulletin 9345
3. Normal range for children >6 years adapted using adult normal ranges after comparison of Beckman Coulter's "Pediatric Reference Range Guidelines for Synchron Systems" Bulletin 9345 and adult normal ranges.
4. Normal range for adults was determined by testing 270 male and female healthy blood donors at UCSF.
Synonyms SGOT; AST; GOT; glutamic-oxaloacetic transaminase; glutamic-aspartic transaminase; transaminase A; AAT; AspT; 2-oxoglutarate-glutamate aminotransferase; aspartate α-ketoglutarate transaminase; aspartate aminotransferase; aspartate-2-oxoglutarate transaminase; aspartic acid aminotransferase; aspartic aminotransferase; aspartyl aminotransferase; AST; glutamate-oxalacetate aminotransferase; glutamate-oxalate transaminase; glutamic-aspartic aminotransferase; glutamic-oxalacetic transaminase; glutamic oxalic transaminase; GOT (enzyme); L-aspartate transaminase; L-aspartate-α-ketoglutarate transaminase; L-aspartate-2-ketoglutarate aminotransferase; L-aspartate-2-oxoglutarate aminotransferase; L-aspartate-2-oxoglutarate-transaminase; L-aspartic aminotransferase; oxaloacetate-aspartate aminotransferase; oxaloacetate transferase; aspartate:2-oxoglutarate aminotransferase; glutamate oxaloacetate transaminase
Stability Room temperature 8 hours, refrigerated 2 days, frozen at -20C 1 week
Turn around times STAT 1 hour, Routine 4 hours
Additional information Hemolysis may artifactually increase the result.

Samples with AST levels above the upper limit of the assay will automatically be diluted and re-run.
CPT coding 84450
LOINC code 1920-8
Last Updated 7/24/2015 8:49:10 AM
Entry Number 81
Lab Procedure Link Click here for Procedure
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