Certified Medical-Surgical Registered Nurse Practice Test

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Prepare for the Certified Medical-Surgical Registered Nurse Exam with confidence. Our comprehensive quiz features multiple-choice questions paired with hints and explanations to enhance your understanding and readiness for the exam.

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Mrs. Clark is prescribed metoprolol tartrate (Lopressor) for hypertension. Which symptom of hypoglycemia would be masked by Lopressor?

  1. Diaphoresis.

  2. Diplopia.

  3. Tachycardia.

  4. Tingling.

The correct answer is: Tachycardia.

Metoprolol is a beta-blocker that can mask tachycardia, which is a symptom of hypoglycemia. When a person experiences hypoglycemia, their body releases adrenaline, leading to symptoms such as tachycardia (increased heart rate). By taking metoprolol, which reduces heart rate, this symptom may be masked or not as noticeable, potentially causing a delay in recognizing hypoglycemia. Diaphoresis, diplopia, and tingling are not typically affected by beta-blockers like Lopressor.

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