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A cardiac unit nurse receives four clients. Whom should the nurse assess first?

1. A client with chronic AF, HR 96 and irregular
2. A heart-failure client whose weight is up 0.5 kg since yesterday
3. A stable-angina client asking for nitroglycerin before walking
4. A client with yesterday’s MI, HR 48, who says he feels faint

Answer: D) A client with yesterday’s MI, HR 48, who says he feels faint. Symptomatic bradycardia after MI may mean heart block needing urgent action. A 0.5 kg gain is below the usual reporting threshold, and the others are stable.