The nurse receives the blood test reports of a patient who was admitted to hospital with complaints of chest pain. The report shows an elevated level of CK-MB. What does this report signify?
  1. Damage to myocardium
  2. Damage to intercostals muscles
  3. Liver damage
  4. None
Explanation
Answer: A - In this situation the elevated CK-MB signifies myocardial damage. CK-MB is an enzyme that is found in myocardial tissue. When the tissue is damaged, serum levels of the enzyme are elevated. CK-MB is one of the important cardiac enzymes used to assess the damage to myocardium.
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