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Alanine Aminotransferase (ALT)

Tube type = Mint Green Plasma Separator Tube

Tube Type

Test ID LAB132
EPIC Order ALT
CPT Code(s) 84460
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station 30
Specimen Routine: 2 mL blood/green lithium heparin gel tube. Also acceptable serum gold SST, orange SST, or red plain tube
Micro: 200 µL blood/ mint green top bullet/gold top/red top
Stability Unspun: 4 hrs recommended
Spun/Separated, Room Temp: 8 hrs
Spun/Separated, Refrigerated: 7 days
Frozen: 30 days
Availability 24 hrs/day
Turnaround Time STAT 1 hr., Routine 2 hrs.

Reference Ranges

Normal: ALT (U/L)
Age Female, U/L Male U/L
<3 years 13-45 13-45
3-12 years 15-35 15-35
13-18 years 12-26 15-47
>18 years 10-49 10-49
For unknown, unspecified or transgender patients, both male and female reference ranges will be reported with the following comment: "Sex-specific reference interval. Interpret in the context of patient's hormone profile." </ br>Reference Range effective 7/13/2021

Reviewed by J. Carr on January 10, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514