Test Overview
Test Methodology

LC-MS/MS

Test Usage

Monitoring dietary therapy of patients with galactosemia due to deficiency of galactose-1-phosphate uridyltransferase or uridine diphosphate galactose-4-epimerase.

Reference Range *

< or = 0.9 mg/dL

Test Details
Days Set Up
Tuesday
Analytic Time

8 - 15 days

Soft Order Code
G1P
MiChart Code
Galactose-1-Phosphate, RBC (Sendout)
Synonyms
  • Galactose-1-Phosphate, Erythrocytes
  • GAL1P
Laboratory
Sendout
Reference Laboratory
Mayo GAL1P (80337)
Section
Special Testing
Specimen Requirements
Collection Instructions

For infants, collect specimen immediately prior to feeding to avoid postprandial elevations. Collect blood in a lavender top tube. Send to Specimen Processing refrigerated

Normal Volume
3 mL whole blood
Minimum Volume
2 mL whole blood
Additional Information

Test sent to Mayo Medical Laboratories

Billing
CPT Code
84378
Fee Code
20052
NY State Approved
No