ARUP's Laboratory Test Directory

0080125: Galactose-1-Phosphate Uridyltransferase

[ image for: Patient History For Galactosemia]
Patient History For Galactosemia
  

Test Mnemonic: G1PUT
Methodology: Enzymatic

Performed: Mon, Wed, Fri

Reported: 2-4 days

Specimen Required:  
Collect: One 7 mL green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).  Collect on ice.

Transport: 7 mL whole blood at 2-8°C. (Min: 3 mL)

Pediatric Collection/Transport: 3 mL whole blood at 2-8°C.

Remarks: Do not freeze.

Unacceptable Conditions: Hemolyzed samples.

Stability: Ambient: Unacceptable; Refrigerated: 5 days; Frozen: Unacceptable

Reference Interval:
14.7-25.4 U/g Hb

Note:
Enzyme activity only may not differentiate variant form of galactosemia or carriers.  For a more accurate evaluation of patients suspected to have galactosemia the preferred test is Galactosemia, Panel (0051175). To monitor therapy in patients with galactosemia, order Galactose-1-Phosphate in Red Blood Cells (0081296).

CPT Code(s):
82775