A patient is in the ER for a suspected myocardial infarction.
The nurse sends a blood sample to the lab.
The patient asked the nurse what laboratory levels would be elevated to indicate an MI. The nurse replies:
Elevated potassium levels.
Elevated CK-MB and Troponin levels.
Elevated Lipid profile.
Elevated WBC count.
The Correct Answer is B
Choice A rationale:
Elevated potassium levels are not a specific indicator of a myocardial infarction (MI). They could be due to other conditions like kidney disease.
Choice B rationale:
Elevated CK-MB and Troponin levels are indeed indicators of an MI. These proteins are released into the blood when heart muscle is damaged.
Choice C rationale:
An elevated lipid profile is a risk factor for heart disease, but it does not indicate an acute MI.
Choice D rationale:
An elevated WBC count could indicate an infection or inflammation, but it is not a specific indicator of an MI.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The P wave on an ECG represents atrial depolarization, which is when the atria contract.
Choice B rationale:
The T wave represents ventricular repolarization, which is when the ventricles relax.
Choice C rationale:
The QRS complex represents ventricular depolarization, which is when the ventricles contract.
Choice D rationale:
The ST segment represents the period when the ventricles are depolarized.
Correct Answer is C
Explanation
Choice A rationale:
Constipation is not a known side effect of ACE inhibitors.
Choice B rationale:
Frequent urination is not typically associated with ACE inhibitors.
Choice C rationale:
Persistent cough is a common side effect of ACE inhibitors. This is due to the accumulation of bradykinin, a potent vasodilator, in the respiratory tract.
Choice D rationale:
Tendon pain is not a recognized side effect of ACE inhibitors.
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