q2 - mutation

[ArchivalUser]

A patient presents with aortic stenosis. Which is the best method to determine if the stenosis is due to regular wear and tear, or if it's a complication of rheumatic valve disease?

A. Presence of M protein
B. Presence of hemosiderin laden macrophages
C. Fusion of aortic valve commisures

[ArchivalUser]

A - FOR GP A STREP PYOGENES M PROTEIN

[ArchivalUser]

CC

[ArchivalUser]

The correct answer is CC.

In chronic rheumatic heart disease, the valve that is usually involved is the mitral valve. But occasionally aortic valve is involved. There is constant scarring that occurs on the valves because of this disease and with the aortic valve, it usually results in the fusion of commissures. Coexisiting mitral stenosis and fusion of aortic valve commissures point toward complication of chronic rheumatic valve disease than wear and tear due to age.