Wheeze and Stridor
Differentiating different respiratory sounds can be asked in clinical exams
Wheeze is the high pitch musical sound heard
Characters
- Mostly heard in expiratory phase of respiration
- Indicates small airway obstruction
Conditions
- Asthma
- Bronchitis
- Tropical eosinophilia
Stridor
This is a harsh hoarse sound which is low pitched
Features
- Better heard in Inspiratory phase
- Indicates large airways obstruction
Conditions
- Foreign body
- Whooping cough
- Croup
- Acute epiglottitis
- Subglottic stenosis
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