ALT

Test Code

ALT

Alias/See Also

Alanine Aminotransferase;SGPT

CPT Codes
84460

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.5 mL

Other Acceptable Specimens

or 1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of plasma/serum and red cells. See Specimen Container for appropriate sample type. Separate and refrigerate until tested.

Specimen Stability

2-8°C up to 3 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolyzed

Methodology

UV without P5P at 37°C

Setup Schedule

M, T, W, Th, F, Sa, Sun

Reference Range

7 - 52 U/L

Clinical Significance

This enzyme is a sensitive indicator of active liver damage but does not indicate the cause or reversibility of the damage. Increased serum ALT activity indicates recent or ongoing liver cell damage.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.