Vesicular - Diminished Auscultation Reference

Unlock quizzes, lessons and more.

Sign Up
heart lung sounds waveform patient normal speed
heart lung sounds waveform patient half speed


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

Diminished vesicular sounds are of lower intensity and are less full or robust than vesicular sounds. These sounds can occur in patients who move a lowered volume of air, such as in frail, elderly patients or shallow breathing patients. They are also heard with obese or highly muscular patients, where tissue mass impedes sound. They exhibit a normal inspiration to expiration ratio of 3 to 1, or 4 to 1.

As you listen to this sound, observe the waveform. This is a graph of sound amplitude (loudness) on the vertical axis vs time on the horizontal axis.

Additional Listening Tips

Lower intensity than bronchial sounds, normal inspiration to expiration ratio of 3 to 1 or 4 to 1.

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 Vesicular - Diminished 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.

Vesicular - Diminished Auscultation Reference