In this example, a patient has late inspiratory fine crackles. Such sounds are sometimes associated with with interstitial fibrosis, pneumonia, CHF or atelectasis. These fine crackles may be heard over the posterior lung bases. Use the slider to reveal the area of the lungs where these fine crackles originate.
Skin and Ribs


Blended View


Lungs


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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.