Gradations of Systolic Murmurs
| Grade | Description |
|---|---|
| Grade 1/6 | Softer in volume than S1 and S2, very faint |
| Grade 2/6 | Equal in volume to S1 and S2, quiet, but heard immediately |
| Grade 3/6 | Louder in volume than S1 and S2, moderately loud |
| Grade 4/6 | Louder in volume than S1 and S2, with palpable thrill |
| Grade 5/6 | Louder in volume than S1 and S2, with thrill; may be heard when the stethoscope is partly off the chest |
| Grade 6/6 | Louder in volume than S1 and S2, with thrill; may be heard with stethoscope entirely off the chest |