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HelpTest ID PFK1 Phosphofructokinase Enzyme Activity, Blood
Specimen Required
Container/Tube:
Preferred: Yellow top (ACD solution B)
Acceptable: Lavender top (EDTA) or yellow top (ACD solution A)
Specimen Volume: 6 mL
Collection Instructions:
1. Invert several times to mix blood.
2. Send whole blood specimen in original tube. Do not aliquot.
Secondary ID
607456Useful For
Evaluation of individuals with Coombs-negative nonspherocytic hemolytic anemia
Evaluation of individuals with exercise intolerance or myopathy
Genetic studies in families with phosphofructokinase deficiency
Specimen Type
Whole Blood ACD-BSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood ACD-B | Refrigerated | 11 days |
Reject Due To
| Gross hemolysis | Reject |
| Fully clotted | Reject |
Reference Values
≥12 months of age: 5.8-10.9 U/g Hb
Reference values have not been established for patients younger than 12 months.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82657
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.