A nurse is planning care for a client admitted with diarrhea. Which of the following interventions would be a priority for this client?

Choice A reason: Diarrhea causes significant fluid and electrolyte losses, particularly sodium, potassium, and bicarbonate, risking dehydration and acid-base imbalances. Monitoring these parameters is critical to prevent hypovolemia, arrhythmias, or metabolic acidosis, making it the priority intervention for patient stability. Choice B reason: Standard precautions are necessary to prevent infection transmission but are a routine practice, not the priority. While important for safety, they do not address the immediate physiological threat of fluid and electrolyte imbalances caused by ongoing diarrhea. Choice C reason: Identifying the cause of diarrhea and assessing bowel habits is important for long-term management but is secondary to stabilizing the patient. Fluid and electrolyte losses pose an immediate risk, requiring urgent monitoring before diagnostic or historical assessments. Choice D reason: Encouraging small, frequent meals may help manage diarrhea long-term by reducing gastrointestinal irritation, but it is not the priority. Addressing fluid and electrolyte imbalances takes precedence to prevent life-threatening complications like dehydration or hypokalemia.