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Laboratory Test Directory

Pyruvate Kinase (Updated)

Components

Name Method Department Units
Pyruvate Kinase Quantitative Enzymatic
Send Out U/g Hb

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume
Preferred

Purple tube (EDTA)

3 mL 1 mL
Alternate

Green tube (Sodium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Yellow tube (ACD)

8 mL 1 mL
Stability

Refrigerated - 20 day(s)

Specimen Preparation

  • Ship entire specimen to laboratory refrigerated
  • Do not freeze
  • Do not centrifuge

Reasons for Rejection

  • Wrong collection tube
  • Frozen specimen
  • Room temperature receipt

Comments

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

CPT Code

  • 84220