Sign in or Join for this module. Restore

Crackles - Early Inspiratory (Rales)

Virtual Auscultation

patient torso with stethoscope chestpiece
patient position during auscultation

The patient's position should be sitting.

Lesson

Early inspiratory crackles (rales), as suggested by the title, begin and end during the early part of inspiration. The pitch is lower than late inspiratory crackles. A patient's cough may decrease or clear these lung sounds. Early inspiratory crackles suggest decreased FEV1 capacity and are characteristic of COPD.

Waveform





Authors and Reviewers

Authored by Dr. Jonathan Keroes, MD and David Lieberman, Developer, Virtual Cardiac Patient. Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN. Last Update: 11/28/2021

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