Two hours after undergoing an emergency appendectomy, a 40-year-old woman becomes agitated and confused in the recovery room. Her blood pressure is 80/55 and heart rate 120. Blood pressure does not respond to 1 L of lactated Ringer solution. She has a history of chronic asthma managed with multiple medications. Which of the following is the most appropriate next step in management?
Additional 1 L of lactated Ringer solution
Dobutamine
Dopamine
Epinephrine
Hydrocortisone
Norepinephrine
