This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2017, Subject name: Medicine
A 30 year old patient has right upper limb BP of 180/95 mm Hg and left upper limb BP of 130/90 mm Hg. He also has early diastolic murmur in right 2 intercostal space. Which of the following would be LEAST likely associated with these findings? 
Select and explain. 
A. Supravalvular aoic Stenosis, B. Coarctation of aoa, C. Takayasu aeritis, D. Aoic dissection
B: Coarctation of aoa
Answer: B: Coarctation of aoa 
Explanation: Supra valvular AS - pulse disparity (Coanda effect) - Systolic pressure in the right arm> left arm Streaming of the jet toward the innominate, RCCA, and right SCA Option B - Continuous murmur /systolic murmur Option C - MC blood vessel involved in Takayasu aeritis is Subclan aery. - DIASTOLIC murmur is seen. Option D -unequal BP may be present