Six-point scale of for grading the intensity of heart murmur Grade I: basely audible Grade II: usually readily heard Grade loud GradeⅣv: quite loud Grade V: even most pronounced Grade VI: may be heard with the stethoscope removed from the chest wall• Six-point scale of for grading the intensity of heart murmur – Grade Ⅰ: basely audible – Grade Ⅱ: usually readily heard – Grade Ⅲ: loud – Grade Ⅳ: quite loud – Grade Ⅴ: even most pronounced – Grade Ⅵ: may be heard with the stethoscope removed from the chest wall