Auscultation Training by Repetition Innocent Murmur play pause Listen for 2-3 minutes Supine Bell/Diaphragm Listening Tips Systole: Early, short duration murmur, increases with inspiration. Repetition Training - Basic Heart Sounds Table of Contents 1Third Heart Sound Gallop84 2Fourth Heart Sound Gallop85 3Aortic Stenosis (Diamond Shaped Systolic Murmur)123 4Aortic Regurgitation - Moderate5 5Mitral Stenosis (Diastolic Murmur)125 6Mitral Regurgitation91 7Innocent Murmur36 Previous Lesson Next Lesson Lesson Text This is an example of an innocent murmur.This type of murmur is seen with non-cardiac conditions such as pregnancy, hyperthyroidism, exercise and anemia. When these are treated appropriately the systolic murmur disappears.The murmur is heard in early systole, is of short duration and has a frequency range of 120 hz to 250 hz. It is best auscultated in the pulmonic area and increases in intensity with inspiration. It can be heard with either the bell or diaphragm.In this example S1 and S2 are normal. Diastole is silent.The short duration and mid-range frequency characterize an innocent murmur. Comments on this beta version will be welcomed. Send to: comments@easyauscultation.com soundID14 maneuverSupine TitleInnocent Murmur PositionPulmonic realSoundID caseID36 S1 SystoleEarly, short duration murmur, increases with inspiration S2 Diastole features lung soundsFalse chestpieceBell/Diaphragm