Which of the following best describes a clinical manifestation of polycythemia vera?
peripheral edema
an elevated white blood cell count
orthopnea
an elevated hemoglobin
The Correct Answer is D
A. Peripheral edema is more common in heart failure, not polycythemia vera.
B. WBCs may be elevated, but RBC overproduction is the defining feature.
C. Orthopnea is associated with heart failure, not polycythemia vera.
D. Elevated hemoglobin is a hallmark of polycythemia vera due to excessive RBC production.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Bradycardia is not a typical sign of hypoglycemia; tachycardia is more common.
B. A fruity odor on the breath is a sign of diabetic ketoacidosis (DKA) (hyperglycemia).
C. Vomiting is more common in hyperglycemia/DKA rather than hypoglycemia.
D. Hypoglycemia presents with cool, clammy skin, sweating, confusion, and tremors due to the release of epinephrine.
Correct Answer is A
Explanation
A. Obtain a prescription for supplemental oxygen. – Correct Answer. Hypoxia must be corrected first to prevent tissue hypoxia and organ failure.
B. Obtain a prescription to administer intravenous fluids. – Incorrect. IV fluids are important but oxygenation is the priority.
C. Obtain a prescription to administer insulin. – Incorrect. Insulin corrects hyperglycemia but is not the first priority over oxygenation.
D. Obtain a prescription to check the patient’s glucose level. – Incorrect. While glucose monitoring is essential, treating hypoxia takes priority.
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