<prompt> Severity of mitral stenosis is best identified by?Loud S1Loud opening snapDuration of mid-diastolic murmurIntensity of mid-diastolic murmur  <response>: Severity of mitral Stenosis Implies that the mitral valve orifice has become smaller in size. So, blood will take longer to go from left atrium to left ventricle. Therefore, length of murmur will increase. 