This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Mill Wheel Murmur heard in case of 
Select and explain. 
A. Air embolism, B. Aoic dissection, C. Coarctation of aoa, D. Abdominal aoic aneurysm
A: Air embolism
Answer: A: Air embolism 
Explanation: Mill WHEEL murmur: constant machine like sound, late sign, heard over precordium heard in cases of air embolism.