eat an omelet for breakfast to ensure adequate protein intake
eat foods served warm with moderate amounts of spices
consume most of the daily fluid intake early in the day
brush the teeth immediately after eating; this helps get the food taste out that may trigger nausea
Number 4 is correct.
Rationale: The client should brush the teeth immediately after eating. While omelets contain protein, they are often prepared in butter or grease. Fried and high-fat foods should be avoided. Cool foods with little aroma and no spices are preferable. Large fluid intake should be avoided early in the morning and when nauseated, and consumed at other times instead.