A Patient Comes to the Clinic Complaining of Nausea and Vomiting

A patient comes to the clinic complaining of nausea and vomiting after spending the weekend at a seaside resort. What should be the most important assessment for the nurse?

A) whether the patient is resting and sleeping normally
B) whether the patient is following a typical meal pattern
C) whether the patient had to change time zones when traveling to the resort
D) whether the patient has been sunburned