Emergency medical services arrive at the hospital with a 42-year-old man who was rescued from a structural fire in an enclosed basement. The patient sustained full-thickness burns over his entire anterior torso, both upper extremities, and the anterior aspect of both thighs, yielding an estimated 45% total body surface area involvement. Although awake and agitated, he exhibits a noticeably hoarse voice, and inspection of the oropharynx reveals carbonaceous sputum and soot. Vital signs include a blood pressure of 110/70 mm Hg, heart rate of 118/min, and respiratory rate of 26/min. His oxygen saturation reads 94% while receiving high-flow oxygen. Arrange the following acute management interventions in the most appropriate chronological sequence.
- 1Perform endotracheal intubation to secure the airway
- 2Obtain peripheral large-bore intravenous access
- 3Initiate aggressive fluid resuscitation with lactated Ringer solution
- 4Insert a urethral catheter to monitor urine output
- 5Transfer the patient to a specialized regional burn center