A fixed monophonic wheeze: same pitch, same place, may be an indication of foreign body aspiration or tumor. Use the slider to reveal the lungs. In this patient, the wheezes are heard over most lung areas with greatest intensity in the highlighted region.
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Monophonic wheezes are loud, continuous sounds occurring in inspiration, expiration or throughout the respiratory cycle. The constant pitch of these sounds creates a musical tone. The tone is lower in pitch compared to other adventitious breath sounds. The single tone suggests the narrowing of a larger airway.

These lung sounds are heard over anterior, posterior and lateral chest walls. These sounds can be more intense over lung areas affected by partial obstructions.

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