A 2-year-old boy is in respiratory distress. Noting absent breath sounds in one lung would suggest the child aspirated a foreign body.
Asthma is a chronic (long-term) lung disorder that affects the airways. The airways are the tubes that allow air to enter and exit your lungs. When you have asthma, your airways might become irritated and narrowed. This makes it more difficult for air to exit your airways when you exhale.
Aspiration of foreign bodies is related with unilateral missing breath sounds. A dullness on percussion over the lung is a sign of pneumonia-related fluid accumulation in the lung. An inflamed pleura is indicated by a low-pitched, grating breath sound. A hyper-resonant sound on percussion may be an asthma attack or a pneumothorax.
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