Lung Sounds Reference Guide
Select one of the titles below to review auscultation assessment tips, view phonocardiograms/waveforms and listen to audio recordings.
![reference guide for heart and lungs sounds auscultation](https://mededu.azureedge.net/public/images/hs_ref_guide.jpg)
Aortic Sclerosis (Musical Murmur)
![Aortic Sclerosis (Musical Murmur)](https://mededu.azureedge.net/public/sounds/waveforms50/88.jpg)
Acute Pericarditis
![Acute Pericarditis waveform](https://mededu.azureedge.net/public/sounds/waveforms50/106.jpg)
Aortic Regurgitation (Decrescendo Diastolic Murmur)
![AorticRegurgitation (Decrescendo Diastolic Murmur) waveform](https://mededu.azureedge.net/public/sounds/waveforms50/124.jpg)
Aortic Regurgitation Mild
![Aortic Regurgitation Mild](https://mededu.azureedge.net/public/sounds/waveforms50/94.jpg)
Aortic Regurgitation Moderate
![Aortic Regurgitation Moderate](https://mededu.azureedge.net/public/sounds/waveforms50/5.jpg)
Aortic Regururgitation Severe
![Aortic Regururgitation Severe](https://mededu.azureedge.net/public/sounds/waveforms50/4.jpg)
Aortic Stenosis (Diamond Shaped Systolic Murmur)
![Aortic Stenosis (Diamond Shaped Systolic Murmur)](https://mededu.azureedge.net/public/sounds/waveforms50/123.jpg)
Aortic Stenosis Mild
![Aortic Stenosis Mild](https://mededu.azureedge.net/public/sounds/waveforms50/89.jpg)
Aortic Stenosis Moderate Regur Mild
![Aortic Stenosis Mod Regur Mild](https://mededu.azureedge.net/public/sounds/waveforms50/6.jpg)
Aortic Stenosis - Severe
![Aortic Stenosis - Severe](https://mededu.azureedge.net/public/sounds/waveforms50/7.jpg)
Aortic Stenosis Moderate and Regurgitation Mild - Rheumatic
![Aortic Stenosis Moderate and Regurgitation Mild - Rheumatic Origin](https://mededu.azureedge.net/public/sounds/waveforms50/104.jpg)
Arrhythmogenic RV Dysplasia
![Arrhythmogenic RV Dysplasia](https://mededu.azureedge.net/public/sounds/waveforms50/114.jpg)
Atrial Septal Defect
![Atrial Septal Defect](https://mededu.azureedge.net/public/sounds/waveforms50/110.jpg)
Bronchial
![Bronchial](https://mededu.azureedge.net/public/sounds/waveforms50/76.jpg)
Bronchophony Abnormal
![Bronchophony Abnormal](https://mededu.azureedge.net/public/sounds/waveforms50/152.jpg)
Bronchophony Healthy
![Bronchophony Healthy](https://mededu.azureedge.net/public/sounds/waveforms50/139.jpg)
Bronchovesicular
![Bronchovesicular](https://mededu.azureedge.net/public/sounds/waveforms50/136.jpg)
Coarctation of the Aorta
![Coarctation of the Aorta](https://mededu.azureedge.net/public/sounds/waveforms50/107.jpg)
Commotio Cordis
![Commotio Cordis](https://mededu.azureedge.net/public/sounds/waveforms50/116.jpg)
Crackles Coarse (Rales)
![Crackles Coarse (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/73.jpg)
Crackles Early Inspiratory (Rales)
![Crackles Early Inspiratory (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/148.jpg)
Crackles Fine (Rales)
![Crackles Fine (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/72.jpg)
Crackles - High Pitched (Rales)
![Crackles - High Pitched (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/146.jpg)
Crackles Late Inspiratory (Rales)
![Crackles Late Inspiratory (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/149.jpg)
Crackles Low Pitched (Rales)
![Crackles Low Pitched (Rales)](https://mededu.azureedge.net/public/sounds/waveforms50/147.jpg)
Ebstein's Anomaly
![Ebstein's Anomaly](https://mededu.azureedge.net/public/sounds/waveforms50/117.jpg)
Egophony-a
![Egophony-a](https://mededu.azureedge.net/public/sounds/waveforms50/150.jpg)
Egophony-e
![Egophony-e](https://mededu.azureedge.net/public/sounds/waveforms50/137.jpg)
Exercise Heart Rate 120bpm
![Exercise Heart Rate 120bpm](https://mededu.azureedge.net/public/sounds/waveforms50/37.jpg)
First and Second Heart Sounds Normal and Unsplit
![First and Second Heart Sounds Normal and Unsplit](https://mededu.azureedge.net/public/sounds/waveforms50/32.jpg)
First and Second Heart Sounds Reduced Intensity
![First and Second Heart Sounds Reduced Intensity](https://mededu.azureedge.net/public/sounds/waveforms50/118.jpg)
First Heart Sound (Markedly Split)
![First Heart Sound (Markedly Split)](https://mededu.azureedge.net/public/sounds/waveforms50/40.jpg)
First Heart Sound (Minimally Split)
![First Heart Sound (Minimally Split)](https://mededu.azureedge.net/public/sounds/waveforms50/39.jpg)
First Heart Sound Decreased Intensity
![First Heart Sound Decreased Intensity](https://mededu.azureedge.net/public/sounds/waveforms50/41.jpg)
First Heart Sound Loud
![First Heart Sound Loud](https://mededu.azureedge.net/public/sounds/waveforms50/38.jpg)
First Heart Sound plus Aortic Ejection Click
![First Heart Sound plus Aortic Ejection Click](https://mededu.azureedge.net/public/sounds/waveforms50/43.jpg)
Fourth Heart Sound Plus First Heart Sound
![Fourth Heart Sound Plus First Heart Sound](https://mededu.azureedge.net/public/sounds/waveforms50/42.jpg)
Fourth Heart Sound Gallop
![Fourth Heart Sound Gallop](https://mededu.azureedge.net/public/sounds/waveforms50/85.jpg)
Hypertrophic Cardiomyopathy
![Hypertrophic Cardiomyopathy](https://mededu.azureedge.net/public/sounds/waveforms50/93.jpg)
Innocent Murmur
![Innocent Murmur](https://mededu.azureedge.net/public/sounds/waveforms50/36.jpg)
Innocent Systolic Ejection Murmur - Standing
![Innocent Systolic Ejection Murmur - Standing](https://mededu.azureedge.net/public/sounds/waveforms50/128.jpg)
Innocent Systolic Ejection Murmur - Supine
![Innocent Systolic Ejection Murmur - Supine](https://mededu.azureedge.net/public/sounds/waveforms50/156.jpg)
Mediastinal Crunch
![Mediastinal Crunch](https://mededu.azureedge.net/public/sounds/waveforms50/130.jpg)
Mid-Systolic Click
![Mid-Systolic Click](https://mededu.azureedge.net/public/sounds/waveforms50/121.jpg)
Mitral Regurgitation
![Mitral Regurgitation](https://mededu.azureedge.net/public/sounds/waveforms50/91.jpg)
Mitral Regurgitation (Pan-systolic Murmur)
![Mitral Regurgitation (Pan-systolic Murmur)](https://mededu.azureedge.net/public/sounds/waveforms50/122.jpg)
Mitral Regurgitation - Severe
![Mitral Regurgitation - Severe](https://mededu.azureedge.net/public/sounds/waveforms50/101.jpg)
Mitral Regurgitation and Aortic Regurgitation
![Mitral Regurgitation and Aortic Regurgitation](https://mededu.azureedge.net/public/sounds/waveforms50/105.jpg)
Mitral Stenosis (Diastolic Murmur)
![Mitral Stenosis (Diastolic Murmur)](https://mededu.azureedge.net/public/sounds/waveforms50/125.jpg)
Mitral Stenosis - Mild
![Mitral Stenosis - Mild](https://mededu.azureedge.net/public/sounds/waveforms50/96.jpg)
Mitral Stenosis - Moderate
![Mitral Stenosis - Moderate](https://mededu.azureedge.net/public/sounds/waveforms50/97.jpg)
Mitral Stenosis - Severe
![Mitral Stenosis - Severe](https://mededu.azureedge.net/public/sounds/waveforms50/98.jpg)
Mitral Stenosis Severe and Regurgitation Mild Rheumatic
![Mitral Stenosis Severe and Regurgitation Mild Rheumatic Origin](https://mededu.azureedge.net/public/sounds/waveforms50/103.jpg)
Mitral Valve Leaflet Prolapse
![Mitral Valve Leaflet Prolapse](https://mededu.azureedge.net/public/sounds/waveforms50/127.jpg)
Mitral Valve Prolapse (Click with late systolic murmur)
![Mitral Valve Prolapse (Click with late systolic murmur)](https://mededu.azureedge.net/public/sounds/waveforms50/92.jpg)
Mitral Valve Prolapse with Mid Systolic Click - Standing
![Mitral Valve Prolapse with Mid Systolic Click - Standing](https://mededu.azureedge.net/public/sounds/waveforms50/131.jpg)
Myocarditis
![Myocarditis](https://mededu.azureedge.net/public/sounds/waveforms50/115.jpg)
Opening Snap and Second Heart Sound
![Opening Snap and Second Heart Sound](https://mededu.azureedge.net/public/sounds/waveforms50/52.jpg)
Patent Ductus Arteriosus
![Patent Ductus Arteriosus](https://mededu.azureedge.net/public/sounds/waveforms50/109.jpg)
Pleural Rubs
![Pleural Rubs](https://mededu.azureedge.net/public/sounds/waveforms50/77.jpg)
Prosthetic Heart Sound - Aortic
![Prosthetic Heart Sound - Aortic](https://mededu.azureedge.net/public/sounds/waveforms50/132.jpg)
Prosthetic Heart Sound - Mitral
![Prosthetic Heart Sound - Mitral](https://mededu.azureedge.net/public/sounds/waveforms50/133.jpg)
Pulmonary Stenosis
![Pulmonary Stenosis](https://mededu.azureedge.net/public/sounds/waveforms50/134.jpg)
Pulmonic Regurgitation - Mild
![Pulmonic Regurgitation - Mild](https://mededu.azureedge.net/public/sounds/waveforms50/95.jpg)
Rhonchi - Low Pitched Wheezes
![Rhonchi - Low Pitched Wheezes](https://mededu.azureedge.net/public/sounds/waveforms50/75.jpg)
Second Heart Sound - Fixed Splitting
![Second Heart Sound - Fixed Splitting](https://mededu.azureedge.net/public/sounds/waveforms50/120.jpg)
Second Heart Sound - Physiologic Split
![Second Heart Sound - Physiologic Split](https://mededu.azureedge.net/public/sounds/waveforms50/34.jpg)
Second Heart Sound - Splitting
![Second Heart Sound - Splitting](https://mededu.azureedge.net/public/sounds/waveforms50/119.jpg)
Second Heart Sound and a Tumor Plop
![Second Heart Sound and a Tumor Plop](https://mededu.azureedge.net/public/sounds/waveforms50/50.jpg)
Second Heart Sound and Late Systolic Click
![Second Heart Sound and Late Systolic Click](https://mededu.azureedge.net/public/sounds/waveforms50/49.jpg)
Second Heart Sound with Fixed Splitting
![Second Heart Sound with Fixed Splitting](https://mededu.azureedge.net/public/sounds/waveforms50/46.jpg)
Second Heart Sound with Persistent Splitting
![Second Heart Sound with Persistent Splitting](https://mededu.azureedge.net/public/sounds/waveforms50/45.jpg)
Second Heart Sound Fixed Splitting, Decr. Aortic Intensity
![Second Heart Sound: Fixed Splitting Decreased Aortic Intensity](https://mededu.azureedge.net/public/sounds/waveforms50/48.jpg)
Second Heart Sound: Fixed Splitting Incr. Aortic Intensity
![Second Heart Sound: Fixed Splitting Increased Aortic Intensity](https://mededu.azureedge.net/public/sounds/waveforms50/47.jpg)
Stridor
![Stridor](https://mededu.azureedge.net/public/sounds/waveforms50/140.jpg)
Summation Gallop at 120 beats per minute
![Summation Gallop at 120 beats per minute](https://mededu.azureedge.net/public/sounds/waveforms50/87.jpg)
Tetralogy of Fallot
![Tetralogy of Fallot](https://mededu.azureedge.net/public/sounds/waveforms50/112.jpg)
Third and Fourth Heart Sound Gallop
![Third and Fourth Heart Sound Gallop](https://mededu.azureedge.net/public/sounds/waveforms50/86.jpg)
Third Heart Sound - Physiologic
![Third Heart Sound - Physiologic](https://mededu.azureedge.net/public/sounds/waveforms50/35.jpg)
Third Heart Sound Gallop
![Third Heart Sound Gallop](https://mededu.azureedge.net/public/sounds/waveforms50/84.jpg)
Tricuspid Regurgitation - Severe
![Tricuspid Regurgitation - Severe](https://mededu.azureedge.net/public/sounds/waveforms50/102.jpg)
Tricuspid Stenosis - Moderate
![Tricuspid Stenosis - Moderate](https://mededu.azureedge.net/public/sounds/waveforms50/99.jpg)
Ventricular Septal Defect
![Ventricular Septal Defect](https://mededu.azureedge.net/public/sounds/waveforms50/111.jpg)
Vesicular - Diminished
![Vesicular - Diminished](https://mededu.azureedge.net/public/sounds/waveforms50/135.jpg)
Vesicular - Normal
![Vesicular - Normal](https://mededu.azureedge.net/public/sounds/waveforms50/74.jpg)
Wheeze
![Wheeze](https://mededu.azureedge.net/public/sounds/waveforms50/71.jpg)
Wheezes - Expiratory
![Wheezes - Expiratory](https://mededu.azureedge.net/public/sounds/waveforms50/143.jpg)
Wheezes - High Pitched
![Wheezes - High Pitched](https://mededu.azureedge.net/public/sounds/waveforms50/141.jpg)
Wheezes - Low Pitched
![Wheezes - Low Pitched](https://mededu.azureedge.net/public/sounds/waveforms50/142.jpg)
Wheezes - Monophonic
![Wheezes - Monophonic](https://mededu.azureedge.net/public/sounds/waveforms50/145.jpg)
Wheezes - Polyphonic
![Wheezes - Polyphonic](https://mededu.azureedge.net/public/sounds/waveforms50/144.jpg)
Whispered Pectoriloquy - Abnormal
![Whispered Pectoriloquy - Abnormal](https://mededu.azureedge.net/public/sounds/waveforms50/151.jpg)
Whispered Pectoriloquy - Healthy
![Whispered Pectoriloquy - Healthy](https://mededu.azureedge.net/public/sounds/waveforms50/138.jpg)
Authors and Sources
Authors and Reviewers
-
Heart sounds by Dr. Jonathan Keroes, MD and David Lieberman, Developer, Virtual Cardiac Patient.
- Lung sounds by Diane Wrigley, PA
- Respiratory cases: William French
-
David Lieberman, Audio Engineering
-
Heart sounds mentorship by W. Proctor Harvey, MD
- Special thanks for the medical mentorship of Dr. Raymond Murphy
- Reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.
-
Last Update: 11/10/2021
Sources
-
Heart and Lung Sounds Reference Library
Diane S. Wrigley
Publisher: PESI -
Impact Patient Care: Key Physical Assessment Strategies and the Underlying Pathophysiology
Diane S Wrigley & Rosale Lobo - Practical Clinical Skills: Lung Sounds
- PESI Faculty - Diane S Wrigley
-
Case Profiles in Respiratory Care 3rd Ed, 2019
William A.French
Published by Delmar Cengage - Essential Lung Sounds
by William A. French
Published by Cengage Learning, 2011 - Understanding Lung Sounds
Steven Lehrer, MD
- Clinical Heart Disease
W Proctor Harvey, MD
Clinical Heart Disease
Laennec Publishing; 1st edition (January 1, 2009) -
Heart and Lung Sounds Reference Guide
PracticalClinicalSkills.com
Heart and Lung Sound Reference Guide