Please Explain Completely A teenager has a loud murmur at th

Please Explain Completely,

A teenager has a loud murmur at the second intercostal space to the left side of the sternum. What are the causes of the loud heart murmur associated with this teenager\'s condition?

Solution

Rregurgitation of the tricuspid valve or incomplete closure of the pulmonary valve is the main cause of the loud heart murmur observed in this patient.

Now, following are the causes of regurgitation of the tricuspid valve or incomplete closure of the pulmonary valve:

Dilation of right ventricle of the heart: it results in abnormal functioning of the tricuspid valve.