The patient is brought to the emergency department following a fire in his home. The nurse notes that the patient has singed facial hair and soot on his face. He is mildly tachypneic, his lung sounds are clear and equal, and the nurse notes pronounced stridor. His oxygen saturation is 90% on room air. Patient also complains of a sore throat and severe pain in his arms and hands, which have about 50% of their area covered by burns. Which of the following is the next best step in management?

The nurse is attempting to interpret the arterial blood gas results of an adult male patient with metabolic acidosis who has a bicarbonate (HCO3-) level of 18. Using the Winter formula, determine the expected pCO2 that would indicate this patient is compensating for the metabolic acidosis. Enter your answer using a whole number.

The patient is undergoing cardioversion for symptomatic atrial flutter. Which event requires immediate intervention by the nurse?