Sign in or Join for this module. Restore

Crackles - Late Inspiratory (Rales)

Virtual Auscultation

patient torso with stethoscope chestpiece
patient position during auscultation

The patient's position should be sitting.

Lesson

Late inspiratory crackles (rales) begin in late inspiration and increase in intensity. They are normally higher-pitched and can vary in loudness. These adventitious breath sounds resemble the noise made when hook and loop fasteners are being separated. These sounds are heard over posterior bases of the lungs. They may clear with changes in posture or several deep breaths. They do not clear with coughing.

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 🗙