Crackles - Coarse (Rales) | Auscultation Cheat Sheet with Sounds & Video | #73

Coarse crackles are a loud and distinctive lung sound, often described as popping or bubbling. These intermittent sounds have a lower pitch than their fine counterparts and tend to linger longer in duration - try simulating the noise by rolling pieces of hair between your fingers near your ear!

Patient Sounds

patient heart or lung sound
Crackles - Coarse (Rales) patient recording

Half Speed Patient Sounds

patient heart or lung sound
Crackles - Coarse (Rales) half speed

Technique

Patient position
The patient's position should be seated.

Auscultation Tips

Features:Course crackles are discontinuous, brief, popping sounds. Similar to the sound of a hook and loop fastener being pulled apart. They have also been described as a bubbling sound. More common during inspiration

Sound Wave

Authors and Sources

Authors and Reviewers


Sources

  • Electrocardiography for Healthcare Professionals, 6th Edition Kathryn Booth and Thomas O'Brien
    ISBN10: 1265013470, ISBN13: 9781265013479
    McGraw Hill, 2023
  • Rapid Interpretation of EKG's, Sixth Edition
    Dale Dublin
    Cover Publishing Company
  • EKG Reference Guide
    EKG.Academy
  • 12 Lead EKG for Nurses: Simple Steps to Interpret Rhythms, Arrhythmias, Blocks, Hypertrophy, Infarcts, & Cardiac Drugs
    Aaron Reed
    Create Space Independent Publishing
  • Heart Sounds and Murmurs: A Practical Guide with Audio CD-ROM 3rd Edition
    Elsevier-Health Sciences Division
    Barbara A. Erickson, PhD, RN, CCRN
  • The Virtual Cardiac Patient: A Multimedia Guide to Heart Sounds, Murmurs, EKG Jonathan Keroes, David Lieberman
    Publisher: Lippincott Williams & Wilkin)
    ISBN-10: 0781784425; ISBN-13: 978-0781784429
  • Project Semilla, UCLA Emergency Medicine, EKG Training Breena R. Taira, MD, MPH
  • ECG Reference Guide
    PracticalClinicalSkills.com
Return to Reference Guide Index Page
Crackles - Coarse (Rales) | Auscultation Cheat Sheet with Sounds & Video | #73




An error has occurred. This application may no longer respond until reloaded. Reload 🗙