A continuous murmur is heard in all of the following conditions except:
Ventricular septal defect with aoic regurgitation
Patent ductus aeriosus
Coronary aeriovenous fistula
Venous hum
Answer is A (Ventricular septal defect with Aoic Regurgitation) Ventricular septal defect with Aoic Regurgitation does not produce a continuous murmur Patent Ductus Aeriosus produces a continuous murmur by the presence of a high to low pressure shunt Coronary AV fistula also produces a continuous murmur by the presence of a high to low pressure shunt Venous hum produces a continues murmur by rapid flow of blood Venous hum is a continues murmur usually audible over the medial aspect of the right supraclavicular fossa with the patient upright (Harrison)