رجل عمره ٦٦ سنة في اليوم الأول بعد جراحة تحويل الشرايين التاجية، صار عنده رجفان أذيني جديد بسرعة ١٣٢. الضغط ١١٨/٧٠، والتشبع ٩٦٪، وهو واعٍ ويشعر بخفقان فقط، والبوتاسيوم ٣٫٤. أي عبارة صحيحة؟

A 66-year-old man on day 1 after CABG develops new atrial fibrillation at 132. BP 118/70, SpO2 96%; he is alert with palpitations only, and potassium is 3.4. Which statement is correct?

1. It needs no monitoring because it settles within hours untreated
2. He needs immediate unsynchronised defibrillation because it is lethal
3. It is common after heart surgery; rate control and electrolytes
4. This means the surgery failed and he needs a second operation now

Answer: C) It is common after heart surgery; rate control and electrolytes. AF is one of the commonest complications after cardiac surgery, especially in the first days. A stable client is treated with rate control (such as beta-blockers or amiodarone per plan), potassium and magnesium correction, and an anticoagulation assessment.