<prompt> In a patient with mitral stenosis, disappearance of Loud S1 is associated with all exceptCalcified valveAortic regurgitationHeart blockMild mitral stenosis  <response>: ANS. DConditions associated with dulling of SI disappearance of loud SI in patient with mitral stenosis:1. Calcified mitral valve2. Aortic regurgitation AR3. Mitral regurgitation MRAbsence of presystolic accentuation in mitral stenosis:1. Atrial fibrillation2. Presence of MR3. Flabby left atrium4. Atrial septal defect ASD5. After surgery6. Junctional rhythm. 