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 D
Explanation
Choice A rationale:
Saving the excess medication for the next administration is not recommended. This could lead to medication errors.
Choice B rationale:
Returning the excess medication to the secure cabinet is not the proper way to dispose of excess medication. It could be accidentally used by someone else.
Choice C rationale:
Placing the excess medication in the sharps container is not correct. Sharps containers are for sharp objects like needles, not for medication.
Choice D rationale:
Having a second nurse witness the disposal of the excess medication is the correct action. This ensures accountability and prevents misuse of the medication.
Correct Answer is B
Explanation
Choice A rationale:
Coronary artery disease is a chronic condition that develops over time, not typically associated with chest pain that resolves with rest.
Choice B rationale:
Angina pectoris is characterized by chest pain that often improves with rest, as the heart’s demand for oxygen decreases.
Choice C rationale:
Congestive heart failure usually presents with symptoms like shortness of breath, fatigue, and swelling, not necessarily chest pain.
Choice D rationale:
Myocardial infarction, or a heart attack, typically causes severe chest pain that does not improve with rest.
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