Which of the following statements provides blood work results and rationale that would be most closely associated with acute coronary syndrome?
A)
Increased serum creatinine and troponin I as a result of enzyme release from damaged cells
B)
Increased serum potassium and decreased sodium as a result of myocardial cell lysis, release of normally intracellular potassium, and disruption of the sodium-potassium pump
C)
Elevated creatine kinase and troponin, both of which normally exist intracellularly rather than in circulation
D)
Low circulatory levels of myoglobin and creatine kinase as a result of the inflammatory response
Ans:
C
Feedback:
Myocardial necrosis releases creatine kinase and troponins that normally exist intracellularly. Serum creatinine and potassium are not core markers of heart damage, and myoglobin and creatine kinase levels rise, not fall, with cardiac events.
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