Know Your Blood Parameters: Creatine Kinase-MB (CK-MB)

1. Parameter Name

   Creatine Kinase-MB (CK-MB)
   

2. Test Type

   Blood
   

3. Normal Range

   < 5 ng/mL or < 3% of total CK
   

4. High Levels Indicate

   Heart muscle damage, myocardial infarction, or muscle injury.
   

5. Low Levels Indicate

   Normal muscle status; low or undetectable expected in healthy individuals.
   

6. Why It's Tested

   To help diagnose myocardial infarction and distinguish cardiac from skeletal muscle injury.
   

7. Associated Symptoms (if abnormal)

   Chest pain, weakness, muscle soreness.
   

8. What To Do If Abnormal

   Follow up with ECG, troponin testing, cardiology consultation.
   

9. Common Conditions Related

   Myocardial infarction, myocarditis, muscular dystrophy.
   

10. Nutrition or Lifestyle Connection

    Maintain muscle health with balanced diet, regular exercise, avoid muscle trauma.
    

11. References (APA Format)

    Kushner, F. G., et al. (2009). 2009 focused updates. Circulation, 120(22), 2271-2306.

    MedlinePlus. (2023). Creatine kinase test.https://medlineplus.gov/lab-tests/creatine-kinase-test