Creatine Kinase (CK)

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What is the Lab Name for Creatine Kinase?

Creatine Kinase

What is the Lab Abbreviation for Creatine Kinase?

CK

What is Creatine Kinase in terms of Nursing Labs?

Creatine kinase (CK) enzyme is found in heart and skeletal muscle and to a lesser extent brain. When damage is done to these types of tissue CK is released into the blood. There are three isoenzymes, and depending on which one is elevated this lab value can help determine timing, location, extent of damage. The three isoenzymes are CK-MB (cardiac), CK-MM (skeletal), and CK-BB (brain).

What is the Normal Range for Creatine Kinase?

55 – 170 U/L

What are the Indications for Creatine Kinase?

  • Monitor:
    • Muscle damage
  • Diagnose:
    • Acute Myocardial Infarction(MI)
    • Ischemia
    • Muscular Dystrophy
  • Evaluate success of treatment

What would cause Increased Levels of Creatine Kinase?

  • Muscle damage
  • Rhabdomyolysis
  • Muscular Dystrophy
  • Heart attack
  • Exercise
  • Kennedy’s Disease
  • Stroke

What would cause Decreased Levels of Creatine Kinase?

  • Early pregnancy
  • Small stature

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