Choice A reason: Providing emotional support is important for a client who has ulcerative colitis, as the condition can affect their quality of life and mental health. However, this is not the priority action for a nurse who is caring for a client who is experiencing an acute exacerbation of ulcerative colitis, as it does not address the immediate physical needs of the client.

Choice B reason: Evaluating fluid and electrolyte levels is the priority action for a nurse who is caring for a client who is experiencing an acute exacerbation of ulcerative colitis, as the client is at risk of dehydration, hypovolemia, and electrolyte imbalances due to diarrhea, vomiting, and poor oral intake. The nurse should monitor the client’s vital signs, urine output, weight, skin turgor, mucous membranes, and laboratory values such as serum sodium, potassium, chloride, bicarbonate, blood urea nitrogen (BUN), and creatinine.

Choice C reason: Promoting physical mobility is beneficial for a client who has ulcerative colitis, as it can help prevent complications such as deep vein thrombosis (DVT), pulmonary embolism (PE), and pressure ulcers. However, this is not the priority action for a nurse who is caring for a client who is experiencing an acute exacerbation of ulcerative colitis, as the client may have abdominal pain, fatigue, and weakness that limit their mobility. The nurse should encourage rest and provide comfort measures such as positioning, heat therapy, and analgesics.

Choice D reason: Reviewing stress factors that can cause disease exacerbation is helpful for a client who has ulcerative colitis, as stress can trigger or worsen inflammation in the bowel. However, this is not the priority action for a nurse who is caring for a client who is experiencing an acute exacerbation of ulcerative colitis, as it does not address the immediate physical needs of the client. The nurse should teach the client about stress management techniques and refer them to appropriate resources such as counseling or support groups.