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HelpTest Code PKRBCM Pyruvate Kinase Enzyme Activity, Blood
Additional Codes
| Mayo | PK1 |
| Epic ID | LAB1087 |
Specimen Type
Whole Blood ACD-BSpecimen Required
Container/Tube:
Preferred: Yellow top (ACD solution B)
Acceptable: Lavender top (EDTA)
Specimen Volume: 6 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood ACD-B | Refrigerated | 20 days |
Transport EDTA whole blood refrigerated in original tube.
Reject Due To
| Gross hemolysis | Reject |
| Fully clotted | Reject |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Kinetic Spectrophotometry (KS)
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
Day(s) Performed
Monday through Friday
Report Available
1 to 4 daysReference Values
≥12 months of age: 5.5-12.4 U/g Hb
Reference values have not been established for patients younger than 12 months.
CPT Code Information
84220