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Test Code LAB1753 Alanine Aminotransferase

Aliases

ALT

Special Collection Notes

Capillary draws must be free flowing to prevent hemolysis

Specimen Type

Serum/Plasma:
Light Green Top Tube-Lithium Heparin (Preferred)
Gold Top Tube-SST
Red Top Tube-Plain

Processing Instructions

CENTRIFUGE sample per procedure.
Store and send sample refrigerated via courier.

Specimen Volume

Preferred: 0.6 mL
Minimum: 0.3 mL

Temperature

Refrigerated

Sample Stability

Ambient: 18 hours
Refrigerated: 7 days
Frozen @-18 Celsius: Not recommended

TAT

Routine: 90 minutes
STAT: 35 minutes

Test Components

ALT (Alanine Aminotransferase)

Reference Range

Female

0 up to 4 Years: 14-45 U/L

4 Years up to 14 Years: 11-28 U/L

14 Years up to 19 Years: 10-35 U/L

19 Years and up: 5-34 U/L

 

Male

4 Years up to 14 Years: 10-41 U/L

14 Years up to 19 Years: 11-26 U/L

19 Years and up: <50 U/L

CPT

84460

Performing Section

Chemistry

Purpose/Principle

Quantitatively measure alanine aminotransferase (ALT) activity to aid in the diagnosis and treatment of certain liver diseases (e.g. viral hepatitis and cirrhosis) and heart diseases.