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
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Test Performed
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
Laboratory Reference
Mayo GAL1P (80337)
Looking to Order a Test?
We’ve provided helpful links to make ordering easy.
Find a Requisition
All specimens should be accompanied by a requisition.
Submitting Specimens
Learn about how to properly label and where to ship specimens.
Order Kits and Supplies
MLabs provides all the supplies necessary for the collection of specimens.
Test FAQ
Visit our provider FAQ and learn about common questions to ordering tests.
Specimen Requirements
Offsite 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
Special Handing
Collect specimen in a green top tube. Immediately deliver to Specimen Processing within 15 minutes of collection or see below for processing instructions.
Normal Volume
3 mL whole blood
Minimum Volume
2 mL whole blood
Additional Information
Test sent to Mayo Medical Laboratories
Billing Information
Fee Codes
CPT Code
84378
Have More Billing Questions?
Explore our helpful billing resources: