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HelpTest Code PFKC Phosphofructokinase Enzyme Activity, Blood
Specimen Required
Only available as part of a profile. For more information see:
-HAEV1 / Hemolytic Anemia Evaluation, Blood
-EEEV1 / Red Blood Cell (RBC) Enzyme Evaluation, Blood
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
Reporting Name
Phosphofructokinase, BSpecimen Type
Whole Blood ACD-BSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood ACD-B | Refrigerated | 11 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Only available as part of a profile. For more information see:
-HAEV1 / Hemolytic Anemia Evaluation, Blood
-EEEV1 / Red Blood Cell (RBC) Enzyme Evaluation, Blood
≥12 months of age: 5.8-10.9 U/g Hb
Reference values have not been established for patients who are younger than 12 months.
Specimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82657
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PFKC | Phosphofructokinase, B | 72664-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PFKCL | Phosphofructokinase, B | 72664-6 |
Day(s) Performed
Weekly