Physiological AdaptationQuestion 767 of 2368

A client with third-degree heart block reports fatigue and has fainted. Which action should the nurse take?

  1. Teach the client to avoid caffeine only
  2. Prepare the client for a pacemaker
  3. Instruct the client to perform Valsalva maneuvers
  4. Give a stool softener and monitor
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Correct answer: Prepare the client for a pacemaker

Third-degree block reduces cardiac output because of poor ventricular filling and a slow heart rate. A temporary or permanent pacemaker is prepared.

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

Practice the topic "Physiological Adaptation"

Questions last reviewed: 18 October 2026