Preferred initial screening test for pyruvate kinase deficiency.
Lavender (EDTA) or Pink (K2EDTA). Also acceptable: Green (Sodium or Lithium Heparin) or Yellow (ACD Solution A or B).
Do not freeze. Transport 1 mL whole blood. (Min: 0.5 mL)
Ambient: Unacceptable; Refrigerated: 20 days; Frozen: Unacceptable
4.6-11.2 U/g Hb
Patients who have recently received transfusions have normal donor cells that may mask PK deficient erythrocytes.
|Component Test Code*||Component Chart Name||LOINC|
- Pyruvate Kinase (RBC)