Galactose 1 Phosphate
Order Name
GAL1PHOS
Test Number: 3703875
Revision Date 12/12/2022
Test Number: 3703875
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Galactose-1-phosphate (mg/dL)
|
Quantitative Gas Chromatography-Mass Spectrometry | 2312-7 |
|
Galactose-1-phosphate (ug/g Hb)
|
Quantitative Gas Chromatography-Mass Spectrometry | 33360-9 |
|
Galactose-1-phosphate (umol/g Hb)
|
Quantitative Gas Chromatography-Mass Spectrometry | 38485-9 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 5 mL (2) | Whole Blood | EDTA (Lavender Top) | Refrigerated |
| Alternate 1 | 5 mL (2) | Whole Blood | Sodium Heparin (Green Top / No-Gel) | Refrigerated |
| Alternate 2 | See Instructions | Processed RBCs | See Instructions | Refrigerated |
| Instructions | Notes: 5mL (2 mL) whole blood or 3mL (600 uL) packed RBC Specimen Type: Lavender-top (EDTA) tube or green-top (heparin) tube Specimen Storage: Refrigerate whole blood or Frozen packed RBC Specimen Collection: Place whole blood tube on wet ice immediately after collection. Alternate acceptable is frozen washed red blood cells 1. Centrifuge whole blood immediately for 10 minutes at 3380 RPM. 2. Discard the plasma and buffy coat layers. 3. Add cold 0.9 percent saline solution to the red blood cells (about 2 times the volume of cells) and mix gently by inverting the tube. 4. Centrifuge for 10 minutes at 3380 RPM. 5. Aspirate and discard the supernatant. 6. Repeat the wash (steps 3 through 5) 2 more times. 7. After the third wash and centrifugation, remove the supernatant and a thin layer of the top cells. 8. Transfer washed cells to a standard transport tube and freeze. Ship on dry ice and indicate on specimen and/or requisition that washed red cells have been submitted. Special Instructions: Testing referred to ARUP TC 81296 Specimen Stability: Ambient: Not Available, Refrigerated : Whole blood 72 hours, Frozen: RBC 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 10 - 15 days |
| Clinical Use | Confirmatory test used in determining Galactosemia, a hereditary autosomal recessive disorder. |
| Performing Labcorp Test Code | 806520 |
| Notes | Labcorp Test Code: 806520 |
| CPT Code(s) | 84378 |
| Lab Section | Reference Lab |