طفل عمره ٧ سنوات جاء لفحص مدرسي، يشتكي أحياناً من صداع وبرودة في القدمين وتعب في الساقين عند الجري. ضغطه في الذراعين ١٤٠/٨٨ وفي الساقين ٩٨/٦٠، والنبض الفخذي ضعيف ومتأخر. ما التشخيص الأرجح؟

A 7-year-old attends a school check and sometimes has headaches, cold feet and leg tiredness when running. BP is 140/88 in the arms and 98/60 in the legs, and femoral pulses are weak and delayed. What is the most likely diagnosis?

1. Atrial septal defect
2. Patent ductus arteriosus
3. Coarctation of the aorta
4. Tetralogy of Fallot

Answer: C) Coarctation of the aorta. Coarctation causes high pressure in the arms and low pressure in the legs, with weak or delayed femoral pulses. It is treated with balloon dilation or surgery.