Which statement best describes the purpose of documenting intake and output?

• A. To document patient safety events.
• B. To monitor nutritional status.
• C. To document medication administration.
• D. To assess fluid balance.

Answer: (D)

Tracking intake and output is about assessing fluid balance. By recording all fluids a patient takes in (oral drinks, IV fluids, tube feedings, irrigation solutions) and all fluids that leave the body (urine, vomit, diarrhea, suction, wound drainage, ostomy outputs), you create a running net balance. This helps you see whether the patient is retaining fluid or becoming dehydrated and guides decisions about fluid therapy, medications such as diuretics, and safety with restricted fluids. It also helps anticipate complications like edema, electrolyte disturbances, or poor perfusion by showing trends over time. So the purpose is to monitor and manage the patient’s fluid status rather than documenting safety events, nutritional status alone, or medication administration.