A nurse is caring for a client following an esophagogastroduodenoscopy (EGD) procedure. Which of the following assessments is the nurse's priority?

Choice A reason: Pain assessment is important post-procedure, but it is not the immediate priority unless signs of perforation or bleeding are present. Pain can be addressed once airway safety is confirmed. Choice B reason: Level of consciousness is monitored during recovery from sedation, but it is not the top priority unless there are signs of respiratory compromise. Most clients regain consciousness quickly post-EGD. Choice C reason: The gag reflex must be assessed before allowing oral intake. During EGD, topical anesthetics are used to suppress the reflex and facilitate scope insertion. If the gag reflex has not returned, there is a risk of aspiration. This makes it the highest priority assessment. Choice D reason: Nausea may occur due to sedation or air insufflation during the procedure, but it is not life-threatening. It can be managed after airway protection is ensured.