Which finding raises concern for inhalation injury in a burn patient?

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Inhalation injury often shows up first in the upper airway, where heat and smoke damage the mucosa and can lead to rapid swelling and obstruction. Hoarseness and singed nasal hairs are classic early signs of this upper airway involvement. They indicate that the airway has been exposed to hot gases and are red flags that raise concern for inhalation injury, even before anything abnormal appears in the lungs. Because upper airway edema can progress quickly, these findings prompt careful airway monitoring and often early consideration of securing the airway.

Lungs that feel clear on auscultation or a normal voice don’t rule out inhalation injury, because the injury can be confined to the upper airway initially or progress with time. Edema and obstruction may develop after the initial assessment, so vigilance is key.

So, hoarseness and singed nasal hairs are the most concerning signs here, pointing to potential inhalation injury and the need for close airway evaluation and management.