Galactose-1-Phosphate Uridyltransferase

Message

Collect a full tube, following standard venipuncture techniques.

Test Code

LAB3795 GAL1P

Alias/See Also

GAL1P

CPT Codes
82775

Includes

This test is for galactose-1-phosphate uridyltransferase (GALT) enzyme testing only. The preferred test to evaluate for possible diagnosis of galactosemia, routine carrier screening, and follow-up of abnormal newborn screening results is GCT / Galactosemia Reflex, Blood.This assay is not appropriate for monitoring dietary compliance. If dietary monitoring is needed, order GAL1P / Galactose-1-Phosphate, Erythrocytes. This assay will not detect galactokinase (GALK) deficiency or uridine diphosphate-galactose 4' epimerase (GALE) deficiency. -To evaluate for GALK deficiency, order GALK / Galactokinase, Blood.-To evaluate for GALE deficiency,order GALE / Uridine Diphosphate -Galactose 4' Epimerase, Blood.@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@

Instructions

Minimum Testing Volume: 2.0 mL Whole Blood Transport Temperature: Refrigerated Stability: Ambient: 14 daysRefrigerated : 28 daysFrozen: N/A Causes for Rejection: Gross hemolysis

Report Available

6-Days

Clinical Significance

1230170009

Last Updated: May 18, 2026

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.