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Test ID GALP Galactose, Quantitative, Plasma

Useful For

Screening for galactosemia

Highlights

Galactose-1-phosphate uridyltransferase (GALT) deficiency is the most common cause of galactosemia and requires lifelong restriction of dietary galactose.

Special Instructions

Method Name

Spectrophotometric, Kinetic

Reporting Name

Galactose, QN, P

Specimen Type

Plasma Na Heparin

Specimen Required

Collection Container/Tube: Green top (sodium heparin)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma Na Heparin Frozen (preferred) 365 days
  Ambient  20 days
  Refrigerated  20 days

Reference Values

1-7 days: <5.4 mg/dL

8-14 days: <3.6 mg/dL

>14 days: <2.0 mg/dL

Day(s) and Time(s) Performed

Varies

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

82760

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GALP Galactose, QN, P 2308-5

 

Result ID Test Result Name Result LOINC Value
83638 Galactose, QN, P 2308-5

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

Testing Algorithm

This is a screening test only.

 

This test is not appropriate for the diagnosis or monitoring of galactosemia. For diagnosis, see GCT / Galactosemia Reflex, Blood. For monitoring, see GAL1P / Galactose-1-phosphate (Gal-1-P), Erythrocytes.

 

See Galactosemia Testing Algorithm in Special Instructions.