A patient has intra-arterial (art-line) blood pressure monitoring after a myocardial infarction (MI). Following the angioplasty procedure, the nurse notes that the patient's heart rate has increased from 88 to 110 beats/min, and the blood pressure dropped from 120/82 to 100/60 mm Hg. What action by the nurse is most appropriate?

Choice A reason: Explaining that diarrhea is expected and that it is how the body gets rid of ammonia is accurate. Lactulose is often prescribed for patients with hepatic encephalopathy, and its purpose is to reduce blood ammonia levels by promoting bowel movements. Diarrhea is a common and anticipated side effect, as it helps eliminate ammonia from the body.

Choice B reason: Recommending Kaopectate for loose stools is not appropriate in this context. Kaopectate is an anti-diarrheal medication, and using it would counteract the effect of lactulose, which aims to promote bowel movements to reduce ammonia levels.

Choice C reason: Instructing the patient to stop taking the medication until stools firm up is incorrect. Lactulose should be continued as prescribed to maintain its therapeutic effect of reducing blood ammonia levels. Stopping the medication would negate its benefits and potentially worsen the patient's condition.

Choice D reason: Suggesting to send a stool specimen to the laboratory is unnecessary in this scenario. Diarrhea is an expected side effect of lactulose, and there is no indication that a stool specimen needs to be analyzed unless there are signs of infection or other complications.

Choice A reason: Maintaining nothing by mouth (NPO) and administering intravenous fluids is the best intervention to reduce discomfort in a patient with acute pancreatitis. NPO status helps to rest the pancreas by preventing the secretion of pancreatic enzymes that can exacerbate inflammation and pain. Intravenous fluids are essential to maintain hydration and electrolyte balance while the patient is not eating or drinking.

Choice B reason: Providing small, frequent feedings with no concentrated sweets is not appropriate for a patient with acute pancreatitis. The priority is to keep the patient NPO to rest the pancreas. Introducing any food can stimulate the pancreas and worsen the condition.

Choice C reason: Administering morphine sulfate intramuscularly every 4 hours as needed can help manage pain, but the preferred route for pain medication in acute pancreatitis is intravenous, as it provides quicker relief and avoids the discomfort of intramuscular injections. Pain management is important, but it should be part of a broader plan that includes NPO status and IV fluids.

Choice D reason: Positioning the patient in a flat, supine position is not recommended for reducing discomfort in acute pancreatitis. Patients often find relief in a semi-Fowler's position (head elevated) or by leaning forward, which can help reduce abdominal pain and pressure on the inflamed pancreas.