Cardiac Auscultation - Murmur Intensity Grading
Grade 1	Audible with a good stethoscope in a quiet room
Grade 2	Quiet but readily audible with a stethoscope
Grade 3	Easily heard with a stethoscope
Grade 4	Loud, obvious murmur with a palpable thrill
Grade 5	Very loud, heard not only over the pericardium but elsewhere in the body
Grade 6	Heard without stethoscope

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