Which of the following conditions warrants intubation in burn patients?

Intubation in burn patients is primarily indicated when there is evidence of airway compromise. The presence of singed nares or eyebrows is a key indicator of potential thermal injury to the airway. These signs suggest that the airway may have been exposed to heat or flames, leading to possible edema, obstruction, or injury to the airway structures.

When a patient presents with these signs, there is a heightened risk of airway swelling and subsequent respiratory distress, which can occur rapidly, especially in the context of thermal burns. Early intubation may be necessary to secure the airway before any swelling compromises breathing, as emergency interventions are crucial in preventing respiratory failure.

The other options, while they highlight burn-related injuries, do not directly indicate an immediate need for intubation. Burns on the hand and legs, although serious, do not affect the airway and therefore do not present the same urgent risk. Inhalation of steam can cause thermal injury, but the degree of airway compromise may vary depending on exposure and symptoms, making assessment vital before proceeding to intubation.