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HelpTest Code GPI1 Glucose Phosphate Isomerase Enzyme Activity, Blood
Specimen Required
Container/Tube:
Preferred: Yellow top (ACD solution B)
Acceptable: Lavender top (EDTA)
Specimen Volume: 6 mL
Collection Instructions: Send whole blood in original tube. Do not transfer blood to other containers.
Secondary ID
607463Method Name
Kinetic Spectrophotometry (KS)
Specimen Type
Whole Blood ACD-BSpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood ACD-B | Refrigerated | 20 days |
Reject Due To
| Gross Hemolysis | Reject |
Reference Values
≥12 months: 40.0-58.0 U/g Hb
Reference values have not been established for patients who are younger than 12 months of age.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84087
Day(s) Performed
Tuesday, Thursday
Report Available
1 to 6 daysForms
If not ordering electronically, complete, print, and send a Benign Hematology Test Request (T755) with the specimen.