A nurse is caring for a patient who is being admitted for an acute exacerbation of ulcerative colitis.Which of the following actions should the nurse take first?

Choice A rationaleObtaining a dietary history is important in managing ulcerative colitis, as certain foods can exacerbate symptoms. However, in an acute exacerbation, the immediate priority is to address physiological instability, which electrolyte imbalances can significantly contribute to.Choice B rationaleDuring an acute exacerbation of ulcerative colitis, patients can experience significant fluid and electrolyte losses due to frequent and bloody diarrhea. Reviewing electrolyte values, such as potassium, sodium, and magnesium, is the priority to identify and promptly correct any imbalances that could lead to cardiac arrhythmias or other complications. Normal ranges for serum electrolytes are: Sodium: 135-145 mEq/L, Potassium: 3.5-5.0 mEq/L, Chloride: 98-106 mEq/L, Bicarbonate: 22-26 mEq/L, Calcium: 8.5-10.5 mg/dL, Magnesium: 1.5-2.5 mEq/L.Choice C rationaleChecking perianal skin integrity is important because frequent diarrhea can lead to skin breakdown. However, this assessment is secondary to addressing potential life-threatening electrolyte imbalances that can occur during an acute flare-up.Choice D rationaleAddressing the patient's emotional concerns is a crucial aspect of holistic care for patients with chronic conditions like ulcerative colitis. However, in the context of an acute exacerbation, the immediate physiological needs, such as identifying and correcting electrolyte imbalances, take precedence.