Heart
Heart Sounds Introduction
Pediatrics: When To Refer
Heart Murmur
Normal Heart Sounds
First Heart Sounds
Second Heart Sounds
Extra Heart Sounds (S3 & S4)
Systolic Murmurs
Diastolic Murmurs
Complex Conditions
Congenital Abnormalities
Cardiac Conditions Assoc. with Sudden Death
Heart Sounds in Primary Care
Auscultation Repetition Training
Heart Sounds Guide
Lungs
Lung Sounds Introduction
Basic Lung Sounds
Intermediate Lung Sounds
Lung Sounds Guide
Intro To Lung Sounds
Blood Pressure
Taking Blood Pressure
Measuring Blood Pressure Procedure
Adult Case Studies Part I
Adult Case Studies Part II
High Blood Pressure in Children
Extras
Terms
Quizzes
Heart Sounds Guide
Lung Sounds Guide
Sonography Training (free)
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Crackles Lung Sounds
Welcome to our website's
crackles lung sounds
page. On this page we provide a definition of crackles, including its clinical significance. We then compare fine and coarse crackles with audio recordings and text. Finally, there is a link to the crackles training lessons available on this site.
Crackles Lung Sounds Definition
Crackles are abnormal lung sounds characterized by discontinuous clicking or rattling sounds. Crackles can sound like salt dropped onto a hot pan or like cellophane being crumpled or like velcro being torn open.
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Fine vs Coarse Crackles
Fine Crackles
play
pause
Listen to these fine crackles. The sound is like salt added to a hot pan.
Coarse Crackles
play
pause
These coarse crackles are lower in pitch and have increased volume intensity. Often they have longer duration.
Crackles Lung Sound Reference Guide
Our auscultation guide provides quick access to both fine and coarse crackles sounds. The guide pages provide waveforms with a moving cursor that is synchronized to the audio recording. In addition, listening tips are available.
Fine Crackles
Coarse Crackles
Crackles Lessons
Lessons on
fine and coarse crackles
are available in our Basics of Lung Sounds course. We suggest taking the full course (about 15-20 minutes), but the lessons can be used without the full course.
Basics of Lung Sounds