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HelpTest ID BLOD0105 Pyruvate Kinase Enzyme Activity, Blood
Useful For
Evaluation of nonspherocytic hemolytic anemia
Evaluation of neonatal anemia or jaundice
Evaluation of unexplained noninfectious hepatic failure
Evaluation of unexplained iron overload
Evaluation of unusually severe hemoglobin S trait
Evaluation of unusually severe glucose 6-phosphate dehydrogenase deficiency
Investigating families with pyruvate kinase deficiency to determine inheritance pattern and for genetic counseling
Specimen Type
Whole Blood ACD-BSpecimen Required
Collection Container/Tube:
Preferred: Yellow top (ACD solution B)
Acceptable: Lavender top (EDTA)
Specimen Volume: 6 mL
Collection Instructions:Â Send whole blood specimen in original tube. Do not aliquot.
Reject Due To
| Gross hemolysis | Reject |
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood ACD-B | Refrigerated | 20 days |
Method Name
Kinetic Spectrophotometry (KS)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84220
Reporting Name
PK Enzyme Activity, BReference Values
≥12 months of age: 5.5-12.4 U/g Hb
Reference values have not been established for patients who are younger than 12 months.
Secondary ID
607459Test 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.Day(s) Performed
Monday through Friday
Report Available
1 to 4 daysForms
If not ordering electronically, complete, print, and send a Benign Hematology Test Request (T755) with the specimen.
SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 26173 | PK ENZYME ACTIVITY, B |