Cardiac enzymes blood test
Normal Reference Range
AST:
5 – 35 IU/mL
CK:
♂ < 190 U/L
♀ < 165 U/L
Troponin I:
<0.04 ng/mL
Test Information
In clinical settings, creatine kinase is measured to identify muscle damage, rhabdomyolysis (severe muscle breakdown), muscular dystrophy, and to track drug-induced myotoxicity, such as that caused by statin therapy, clozapine, and other medications.
It’s important to remember that patients of afro-caribbean ancestry may have CK values that are greater than average given their muscular mass. So a baseline CK level is advised before beginning any therapy likely to cause muscular damage.
Clinical Indications
Diagnosis and monitoring of muscle injury, rhabdomyolysis
Sample Required
5mL serum sample tube is required for CK blood test
Min. sample volume
0.5mL
Special Instructions and Precautions
Not applicable
Time Limits For Retrospective Testing
5 days
Any factors affecting the test
Not applicable
Turnaround Time
4 hrs
Referral centre (if applicable)
Not applicable
Test Code
CE, CK, AST or TROP