A man brings his elderly wife to the emergency department. He states that she has been vomiting and has had diarrhea for the past 2 days. She appears lethargic and is complaining of leg cramps. What should the nurse do first?
1. Start an IV.
2. Review the results of serum electrolytes.
3. Offer the woman foods that are high in sodium and potassium content.
4. Administer an antiemetic.
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