What sample is required?
The determination is made from a venous blood sample from the arm.
Is some kind of prior preparation necessary?
For this test you do not need any special preparation.
Why do the analysis?
To differentiate an injury to the heart muscle from other muscles in the body
When to do the analysis?
When the creatine kinase (CK) level is elevated and the doctor needs to know if it is due to damage to the skeletal muscles or the heart muscle; for monitoring a myocardial infarction when a second heart attack is suspected or when cardiac damage continues to evolve.