مريض ٧٢ سنة اكتُشف عنده هذا النظم لأول مرة. ما أخطر مضاعفة تراقبها الممرضة وتعلّم المريض عنها؟

A 72-year-old has this rhythm detected for the first time. Which complication is most important to monitor and teach about?

1. Stroke from an atrial clot
2. Community-acquired pneumonia
3. High blood glucose
4. Low blood potassium

Answer: A) Stroke from an atrial clot. Atrial fibrillation (irregularly irregular, no P waves) causes atrial stasis and clot formation, so anticoagulation is given based on risk scoring.