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Test 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.


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

Method Name

Kinetic Spectrophotometry (KS)

Reporting Name

Phosphofructokinase, B

Specimen Type

Whole Blood ACD-B

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood ACD-B Refrigerated 11 days

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.

Day(s) Performed

Tuesday, Thursday

Report Available

1 to 6 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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.

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

CPT Code Information

82657