A client is receiving continuous enteral nutrition through a nasogastric small-bore silicone feeding tube. What should the nurse plan for when this client has a computed tomography (CT) scan ordered?

Choice A reason: Hypermagnesemia, or high levels of magnesium in the blood, is not typically associated with refeeding syndrome. Instead, refeeding syndrome can lead to hypomagnesemia, which is a low level of magnesium in the blood, due to shifts of magnesium into the cells during insulin secretion in the refeeding process.

Choice B reason: Hyponatremia, or low levels of sodium in the blood, is not a hallmark of refeeding syndrome. While fluid shifts can affect sodium levels, the key electrolyte disturbances in refeeding syndrome involve phosphorus, potassium, and magnesium.

Choice C reason: Hyperkalemia, or high levels of potassium in the blood, is not a common finding in refeeding syndrome. Similar to magnesium, potassium can shift into cells during refeeding, which can actually lead to hypokalemia, or low levels of potassium in the blood.

Choice D reason: Hypophosphatemia, or low levels of phosphorus in the blood, is the hallmark of refeeding syndrome. When a malnourished individual is refed, insulin secretion is stimulated by the increased carbohydrate intake. Insulin promotes cellular uptake of glucose, which is accompanied by phosphate, potassium, and magnesium, leading to a decrease in the serum levels of these electrolytes. Phosphorus is critical for cellular processes, and its deficiency can lead to muscle weakness, respiratory failure, hemolysis, and impaired cardiac function. During refeeding, careful monitoring of electrolytes is essential to prevent and manage refeeding syndrome. Hypophosphatemia is the most significant laboratory finding to anticipate in a patient with refeeding syndrome, and it requires prompt recognition and treatment to prevent serious complications.

Choice A reason: Dizziness and pallor are common vasomotor symptoms of early dumping syndrome. They result from the rapid shift of fluid into the intestine, leading to a decrease in blood volume and a temporary decrease in blood pressure.

Choice B reason: Abdominal cramping and pain are gastrointestinal symptoms of dumping syndrome but are not specifically vasomotor manifestations. They occur due to the rapid entry of hyperosmolar contents into the small intestine.

Choice C reason: Bradycardia is not typically a symptom of dumping syndrome. Instead, tachycardia is more commonly observed due to the body's response to the rapid changes in the gastrointestinal tract and blood volume.

Choice D reason: Double vision and chest pain are not typical symptoms of dumping syndrome. These symptoms may indicate other medical conditions and should be evaluated separately.