Q. An 18-year-old woman comes to the emergency department with burns on the lower half of her body that occurred an hour ago. This happened when she was lifting a big soup bowl from an over-the-range microwave and spilled hot soup over her body. Her temperature is 37.4°C (99.4°F), blood pressure is 120/80 mm Hg, pulse is 90/min, respiratory rate is 18/min, and oxygen saturation is 99% on room air. Physical examination shows erythematous skin with scattered blisters over the lower third of her anterior trunk sparing the groin and anterior aspects of both lower limbs. They look moist and red and the application of pressure produces blanching. The lesions are painful for contact with air and for temperature and pressure. Which of the following is the most appropriate management?