RN Exam Practice
Physiological AdaptationQuestion 768 of 2368

Which client has a sinus bradycardia that is most likely a normal finding?

  1. A client with a heart rate of 50 who reports crushing chest pain
  2. A client with a heart rate of 48 who is newly confused and lethargic
  3. A well-conditioned marathon runner with a rate of 52 and no symptoms
  4. A client with a heart rate of 52 who fainted while getting out of bed
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Correct answer: A well-conditioned marathon runner with a rate of 52 and no symptoms

Sinus bradycardia can be normal in athletes with well-conditioned hearts. Symptoms of low cardiac output need action.

Source: Nursing Advanced Skills (Open RN, Chippewa Valley Technical College, 2023), Interpret Basic ECG: Sinus Rhythms. Licensed under CC BY 4.0.

Practice the topic "Physiological Adaptation"

Questions last reviewed: 18 October 2026