Which events can occur during emergence?

• A. Coughing, respiratory and cardiac events, and changes in mental status
• B. Prophylactic antibiotics given
• C. Analgesia only
• D. No events occur

Answer: (A)

Emergence is the phase as anesthesia wears off and the patient wakes up, when airway reflexes and autonomic responses return and the body can react in several ways. Coughing happens because the airway protective reflexes reappear and irritant stimuli from the airway are no longer blunted. Respiratory events such as laryngospasm, airway obstruction, or bronchospasm can occur as the patient transitions from anesthesia to spontaneous breathing. Cardiac events—like tachycardia or hypertension—are common during this period due to sympathetic activation as the body responds to airway stimulation, pain, and the clearing of anesthetic drugs. Mental status can also change, with agitation, confusion, or emergence delirium as the brain exits the anesthetic state. Together, coughing, respiratory/cardiac changes, and mental status fluctuations reflect the range of emergence phenomena.

Prophylactic antibiotics, analgesia alone, or the notion that no events occur do not capture the typical emergence experience.