<prompt> A ten-year-old boy presents to the pediatric emergency unit with seizures. Blood pressure in the upper extremity measured as 200140 mm Hg. Femoral pulses were not palpable. The most likely diagnosis amongst the following is:Takayasu aortoarteritisRenal parenchymal diseaseGrand mal seizuresCoarctation of aorta  <response>: d. Coarctation of aortaRef: Nelsons 20e p 2205, Ghai 8e p 431-433Isolated upper extremity hypertension 200140mmHg, together with absentdiminished femoral pulses is a characteristic feature of coarctation of aorta. 