Ordering Recommendation

Preferred initial screening test for pyruvate kinase deficiency.

Mnemonic
PK
Methodology

Quantitative Enzymatic

Performed

Sun-Sat

Reported

1-2 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Lavender (EDTA) or Pink (K2EDTA). Also acceptable: Green (Sodium or Lithium Heparin) or Yellow (ACD Solution A or B).

Specimen Preparation

Do not freeze. Transport 1 mL whole blood. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks
Stability

Ambient: Unacceptable; Refrigerated: 20 days; Frozen: Unacceptable

Reference Interval

4.6-11.2 U/g Hb

Interpretive Data



No compliance statements are in use for this test.

Note

Patients who have recently received transfusions have normal donor cells that may mask PK deficient erythrocytes.

Hotline History
N/A
CPT Codes

84220

Components
Component Test Code* Component Chart Name LOINC
0080290 Pyruvate Kinase 32552-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • PK
  • Pyruvate Kinase (RBC)
Pyruvate Kinase