Heart Murmur Levine Grade 6 Classification

Level	Loudness	Auscultation Characteristics	Thrill
1	Very Quiet	Very weak, easily overlooked by beginners or those lacking experience in heart auscultation	None
2	Light	Can be heard by beginners or those lacking experience in heart auscultation	None
3	Moderate	Obvious murmur	None
4	Moderate	Obvious murmur	Present
5	Loud	Murmur is very loud	Obvious
6	Loud	Murmur is very loud, can be heard even if the stethoscope is slightly away from the chest wall	Obvious

Explanation

Recording method for murmur grading:

The murmur grade is the numerator, and 6 is the denominator; for a murmur with a loudness of level 2, it is recorded as a 2/6 murmur.

The intensity of systolic murmurs is generally graded using the Levine Grade 6 classification, and the grading of diastolic murmurs can also refer to this standard, but some only categorize them into three levels: mild, moderate, and severe.

References

Edited by Ouyang Qin. Clinical Diagnosis (Eight-Year Program) (2nd Edition). People's Medical Publishing House. 2010. p217.