Test Code CK Creatine Phosphokinase (CK), Plasma

Performing Laboratory

NRL-Chemistry

Rate Reaction/Photometric

Submit only 1 of the following specimens:

Preferred:

Specimen Type: Plasma

Container/Tube: Mint-green top (lithium heparin)

Specimen Volume: 1 mL

Alternate (Non-Hospital Patient):

Specimen Type: Serum

Container/Tube: Gold top, serum gel

Specimen Volume: 1 mL

Collection Instructions:

1. Spin down unopened (vacuum intact) tube within 45 minutes of draw.

2. Send specimen in original tube.

≥18 years: 30-220 U/L

≤18 years: 5-300 U/L

Monday through Sunday

Refrigerate

82550