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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.
Reporting Name
Phosphofructokinase, BSpecimen Type
Whole Blood ACD-BSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood ACD-B | Refrigerated | 11 days |
Report Available
1 to 6 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PFK1 | Phosphofructokinase, B | 72664-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PFKCL | Phosphofructokinase, B | 72664-6 |
Forms
If not ordering electronically, complete, print, and send a Benign Hematology Test Request (T755) with the specimen.
Useful 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
Day(s) Performed
Tuesday, Thursday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82657
Specimen Minimum Volume
1 mL
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.
Method Name
Kinetic Spectrophotometry (KS)