A client enters the emergency department confused, twitching, and having seizures. His family states he recently was placed on corticosteroids for arthritis and was feeling better and exercising daily. On data collection, he has flushed skin, dry mucous membranes, an elevated temperature, and poor skin turgor. His serum sodium level is 172 mEq/L.
Which interventions would the health care provider likely prescribe? Select all that apply.

1. Monitor vital signs.
2. Monitor electrolyte levels.
3. Increase water intake orally.
4. Monitor intake and output.
5. Maintain sodium-reduced diet.
6. Administer sodium replacements.