Creatine Kinase Test

This test measures the blood level of creatine kinase, an enzyme that is released into the blood after a muscle injury.




This test measures the blood level of creatine kinase, an enzyme that is released into the blood after a muscle injury.



This test measures the blood level of creatine kinase (CK), an enzyme that is normally found in muscles. When a muscle is injured, such as during a heart attack, it releases CK into the blood.

  • If the level of CK is elevated in the blood, it can indicate damage to the heart or other muscles.
  • This test may be done if you have signs of a heart attack or evidence of injury to other muscles. The most common signs of muscle injury include pain and weakness.

In an adult, the blood sample is usually taken by placing a needle in a vein in the arm.

  • No special preparation is needed for the test.
  • This care path's costs do not include the charge to draw blood from a vein (venipuncture).
  • There will only be one charge to draw blood, even if multiple tests are being performed on the samples that are taken.

What should I ask my healthcare provider before having this test?

  • Is there any special preparation for the test? (If so, get clear instructions on what you need to do.)
  • What is the reason for the test? Will the test results change my treatment plan? If not, do I need the test?

Source UHC.com

Also known as:

Myocardial Infarction
Muscle Enzyme Blood Test
Laboratory Work
Heart Muscle Damage
Heart Attack
Creatine Kinase Test
CK Blood Test


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