Galactose-1-Phosphate, RBC
Label Mnemonic: | GAL1PHOS |
Epic code: | LAB3192 |
Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Whole Blood
Specimen
Instructions:
Erythrocytes must be washed within 4 hours of draw.
Collection Medium:
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Lavender top tube 3 mL (EDTA) |
Alternate
Collection Media:
Green top tube 4 mL (Na Heparin)
Minimum:
3 mL EDTA whole blood (fill complete tube). Do NOT pour off into another tube. Do Not centrifuge. Specimen must be analyzed within 72 hours of collection.
Additional Information:
For infants, collect specimen immediately prior to feeding to avoid postprandial elevations.
Additional Information:
For infants, collect specimen immediately prior to feeding to avoid postprandial elevations.
Delivery Instructions:

Testing Schedule:
Collect Monday-Thursday only; no weekend, no holiday, no day before holiday collection. For Friday collection, call Mailouts at 356-8593 (M-F, 8-5).
Turn Around
Time:
2 weeks upon receipt at reference laboratory
Reference Range:
Normal range: < or =0.9 mg/dL
Therapeutic range: < or =4.9 mg/dL
Therapeutic range: < or =4.9 mg/dL
Interpretive Data:
The concentration of galactose-1-phosphate (Gal-1-P) is provided along with reference ranges for patients with galactosemia and normal controls. The recommended Gal-1-P goal for patients with galactosemia is less than or equal to 4.9 mg/dL.
Comments:
Useful For:
Monitoring dietary therapy of patients with galactosemia due to deficiency of galactose-1-phosphate uridyltransferase or uridine diphosphate galactose-4-epimerase.
The results of specimens collected following a meal can exhibit postprandial elevations. For infants, collect a specimen immediately prior to feeding to avoid this.
Monitoring dietary therapy of patients with galactosemia due to deficiency of galactose-1-phosphate uridyltransferase or uridine diphosphate galactose-4-epimerase.
The results of specimens collected following a meal can exhibit postprandial elevations. For infants, collect a specimen immediately prior to feeding to avoid this.
Methodology:
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
CPT Code:
84378