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 ["B","C","E"]
Explanation
Choice A rationale:
Keeping the client NPO after midnight is not necessary for an ECG. It is a non-invasive procedure that does not require fasting.
Choice B rationale:
Inspecting the electrode pads is important to ensure good contact with the skin and accurate readings.
Choice C rationale:
Instructing the client to breathe normally during the ECG helps to prevent artifacts in the tracing that could lead to misinterpretation.
Choice D rationale:
Administering an analgesic prior to the procedure is not necessary. An ECG is a painless procedure.
Choice E rationale:
Using alcohol to wipe the skin before placing the electrodes can improve the quality of the ECG by reducing skin impedance.
Correct Answer is A
Explanation
Choice A rationale:
Swollen, bleeding gums are a common symptom of Vitamin C deficiency, also known as scurvy. Vitamin C is essential for the health of gums and teeth.
Choice B rationale:
Pale, brittle nails are not typically associated with Vitamin C deficiency. They can be a sign of other conditions such as iron deficiency anemia.
Choice C rationale:
Inflammation of the tongue, or glossitis, can be caused by various conditions, including certain vitamin deficiencies, but it’s not a common sign of Vitamin C deficiency.
Choice D rationale:
Dry, red conjunctiva can be a symptom of various eye conditions, but it’s not typically associated with Vitamin C deficiency.
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