This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Valve usually not involved in rheumatic fever ? 
Select and explain. 
A. Mitral, B. Aoic, C. Pumonary, D. Tricuspid
C: Pumonary
Answer: C: Pumonary 
Explanation: Ans. is 'c' i.e., Pumonary "The pulmonary valve is least frequently involved" In Rheumatic fever o Commonest valve to involve Mitral valve o 2nd commonest valve to involve Aoic valve o Least frequently involved value ---> Pulmonary valve o Most common valvular deformity produced --> Mitral regurgitation