Heart and Lung Sounds Reference Guide

Bronchophony - Abnormal Auscultation Reference

Patient Normal Speed

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Patient Half Speed

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Lesson

For heart sounds listen to the synthetic sound while reviewing this lesson.

Ask the patient to say "99" several times while auscultating the chest walls. Over consolidated areas "99" is understandable. This is because acoustic filtering is reduced in consolidated lung tissue, which allows better sound transmission.

Compare this breath sound to the recording in the "Bronchophony - Healthy" lesson.

The waveform(s) seen above are a chart of sound amplitude (loudness) on the vertical axis against time on the horizontal axis.

Listening Tips

A summary of the key aspects of this heart or lung sound.
Ask patient to say "99" several times. Auscultate chest walls. Over consolidated areas "99" is understandable. For example, pneumonia in the upper lobes, both posterior and anterior. Compare to the Bronchophony - Healthy recording.

Auscultation Method

The recommended patient position is sitting

For this sound, use stethoscope's diaphragm The recommended auscultation position for the stethoscope is posterior-3l

Relevant Courses

If you wish to review a complete mobile concerning Bronchophony - Abnormal Auscultation Reference and related heart sounds, the modules(s) listed below may be useful. Each lesson includes text that explains the auscultatory sound and its clinical significance. The lesson also includes an audio track for playback. A waveform provides a great way to visualize the sounds. Finally, we also include an animation video. For heart sounds, the video illustrates heart muscle and valve movements along with blood flow. For lung sounds, the primary source of the sounds can be seen. Each module also includes a quiz.

Intermediate Lung Sounds

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Bronchophony - Abnormal Auscultation Reference