Galactose 1 Phosphate

Centralized Core Laboratory:Chemistry

Test ID/Workstation: G1P MAYO

Specimen Type: Blood

Tube Type: Green top (lithium heparin) tube: Whole Blood

Collection Volume: 4.0 mL (minimum 2.0 mL)

Cause for rejection: -

Storage: Frozen

Availability: Sent to reference lab

Methodology: Ultraviolet, Enzymatic

Special Instructions: Draw blood in a green-top(heparin) tube(s), and process a minimum of 2 mL of heparinized whole blood as follows:

1. Immediately centrifuge for 10 minutes at 2,000 rpm.

2. Discard the plasma and buffy coat layers.

3. Add a cold 0.9% saline solution to the erythrocytes (about 2 times the

volume of erythrocytes).

4. Mix gently by inversion and centrifuge again for 10 minutes at 2,000 rpm.

5. Remove and discard the saline.

6. Repeat the wash steps (3-5) 2 more times.

7. After the final centrifugation, remove and discard the saline and a thin layer of the top cells.

8. Immediately freeze the washed, packed cells (red cell pellet from

step 7) and send specimen frozen in plastic vial.

OC Power Word: LG1P

Lab/Phone: 330-543-8418

TAT: 7 days

Additional Info: Reference range is available on patient report

CPT Code: 84378

Synonyms: -

Requisition Form
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