Innocent Murmur | Auscultation Cheat Sheet with Sounds & Video | #36

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 120Hz to 250Hz. 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.

Auscultation Audio

auscultation sound from lesson
waveform

Technique

Patient position
The patient's position should be supine.

Auscultation Tips

Systole:Early, short duration murmur, increases with inspiration

Sound Wave



Observe Cardiac Animation

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Innocent Murmur | Auscultation Cheat Sheet with Sounds & Video | #36

Electrocardiogram (EKG/ECG) ECG Interpretation
Heart Sounds Heart Sounds
Lung Sounds Lung Sounds
Blood Pressure Blood Pressure
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Ultrasound image Ultrasound
Electrocardiogram (EKG/ECG) EKG Rhythms
Pulmonary Problem-Solving Respiratory Care
multimedia lessons Basic ECG Monitor
Adv. ECG Monitor
Pulmonary Hypertension course image Fundamentals
Lung Sounds Key Lung Sounds
Pediatric referral image Pediatric Referral
Carotid Artery Bruit Carotid Bruit
Pulmonary Hypertension course image Pulmon. Hypertension
Abdominal Sounds Abdominal Sounds
Auscultation Training by Repetition Repetition Drill
auscultation guide torso

Reference Guide
multimedia lessons Free Resources
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