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Alanine transaminase, Plasma / Serum

Item Value
Approval req'd? No
Available Stat? Yes
Test code ALT
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 Male
0 - 17 years 20-60 U/L
≥18 years 12-60 U/L

0 - 3years 20-60 U/L
4 years - 17 years 20-50 U/L
≥18 years 11-50 U/L

1. Normal range for children 0 to <18 years adapted from "Pediatric Reference Intervals", 6th edition, AACC Press, 2007, method 4.
2. Normal range for adults was determined by testing 269 male and female healthy blood donors at UCSF.
Synonyms SGPT; ALT; glutamic-pyruvic transaminase; glutamic-alanine transaminase; GPT; β-alanine aminotransferase; alanine aminotransferase; alanine-α-ketoglutarate aminotransferase; alanine-pyruvate aminotransferase; ALT; glutamic acid-pyruvic acid transaminase; glutamic-pyruvic aminotransferase; L-alanine aminotransferase; L-alanine transaminase; L-alanine-α-ketoglutarate aminotransferase; pyruvate transaminase; pyruvate-alanine aminotransferase; pyruvate-glutamate 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 Excessive hemolysis causes mild elevation.
CPT coding 84460
LOINC code 1742-6
Last Updated 7/24/2015 8:51:01 AM
Entry Number 230
Lab Procedure Link Click here for Procedure
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