Creatine Kinase (CK)

Code:
CK

Sample Type:

Serum (Gold Top)

Minimum volume: 1 mL

Ref Ranges/Units:

Childhood/Adult:
Male 40 – 320 U/L
Female 25 – 200 U/L

Neonatal:
0-5 days: 0 – 900 U/L
5-10 days: 0 – 500 U/L

Results >5000 U/L will be phoned to the requesting clinician.

Turnaround:

Same Day (60 minutes from receipt for Urgent Samples)

Stability:

2 days at 20‑25°C
7 days at 4‑8°C
4 weeks at -20°C
Freeze only once.

Special Precautions/Comments:

Additional Information:

Creatine kinase (CK) is an intracellular enzyme found in muscle cells and can therefore be used as marker of muscle cell damage. CK is mainly used in the investigation of muscle pain, rhabdomyolysis and muscular dystrophies. A raised CK can also be seen in trauma, statins, intense exercise, hypothyroidism, and hypokalaemia. 

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