The Leeds Teaching Hospitals NHS Trust

Creatine Kinase (CK)

Creatine Kinase (CK)

A marker of muscle damage. Please note: test can only be added to a sample within 24 hours of collection

Tube 01 (SE) - Serum Gel
ID Tests&Tubes0040
Additional Information CARDIAC: In MI CK starts to rise 4 - 8 hours post chest pain and peaks at about 24 hrs. It is unreliable 3 days post pain. The CK-MB fraction may be useful to establish the source of a raised CK. Myocarditis can give a similar enzyme picture to MI. MUSCLE: The largest rises occur in association with Duchenne Muscular dystrophy and acute polymyositis. Muscle trauma e.g fitting, falls in the elderly, IM injections, severe exercise also gice rise to raised CK. Other causes of raised CK includedDrugs/toxic substances (steroids, clofibrate, alcohol, CO poisoning), inflammation (myositis), McArdle's syndrome (during exercise) hypothermia, and malignant hyperpyrexia.
Turn Around A&E: 1 hour
Day Case: 4 Hours
In-Patient: 6 Hours
Out-Patient: 24 Hours
GP: 24 Hours
Send to Blood Sciences Cross Site
Contact For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net.
Collection Con Intensive care units, renal unit, transplant unit, patients on IV heparin use lithium-heparin (Green with Yellow ring) tube.
Instructions for Lab: Store at 2-8oC centrifuged prior to analysis if delayed
Sample REQ Blood
Ref. Range Notes Blood Sciences Refernce ranges available through the useful information and links page:https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/
Units IU/L
Telepath CK2L
ICE Codes LCK