The client tells the triage nurse in the emergency department (ED) she has food poisoning like the rest of the people who ate at a local restaurant. The client has been vomiting and has had diarrhea...

The client tells the triage nurse in the emergency department (ED) she has food poisoning like the rest of the people who ate at a local restaurant. The client has been vomiting and has had diarrhea for the past 6 hours and needs help. Which medication should the nurse administer first

1. Diphenoxylate (Lomotil), an antidiarrheal.

2. Ceftriaxone (Rocephin), an antibiotic, intravenous piggyback.

3. Pantoprazole (Protonix), a proton-pump inhibitor.

4. Diluted promethazine (Phenergan), an antiemetic, intravenous push.