Which of the following is NOT a sign of inhalation injury?

Inhalation injury refers to damage caused to the respiratory tract from inhaling harmful substances, often seen in cases of smoke inhalation or chemical exposure. Identifying signs of inhalation injury is crucial for appropriate management and intervention.

The presence of redness and swelling in the airways is typically associated with a variety of conditions, including infections or allergic reactions, rather than specifically indicating inhalation injury. Inhalation injuries often manifest through specific, identifiable signs that can be observed externally or noted in patient symptoms.

Singed eyebrows, black oral or nasal discharge, and a hoarse voice are all classic indicators of inhalation injury. Singed eyebrows can indicate exposure to flames, while black discharge can point to soot or smoke inhalation. A hoarse voice often results from irritation or damage to the vocal cords due to inhaling hot or toxic gases. In contrast, redness and swelling are more general symptoms and do not directly correlate with inhalation injuries, making them less indicative of this specific type of damage.