A nurse is providing anticipatory guidance to a client who has phenylketonuria (PKU) and is planning a pregnancy. Which of the following information should the nurse include in the discussion?

Choice A reason: Crohn's disease is not commonly associated with obesity, although obesity can worsen the symptoms and complications of Crohn's disease. Crohn's disease is a type of inflammatory bowel disease that causes inflammation and ulcers in the digestive tract, especially the small intestine and colon. The exact cause of Crohn's disease is unknown, but it may involve genetic, immune, and environmental factors.

Choice B reason: Celiac disease is not commonly associated with obesity, although obesity can make the diagnosis of celiac disease more difficult. Celiac disease is an autoimmune disorder that causes damage to the small intestine when gluten, a protein found in wheat, barley, and rye, is ingested. The damage interferes with the absorption of nutrients and can lead to malnutrition, anemia, and osteoporosis.

Choice C reason: Peptic ulcer disease is not commonly associated with obesity, although obesity can increase the risk of complications from peptic ulcer disease. Peptic ulcer disease is a condition that causes sores or ulcers in the lining of the stomach or duodenum, the first part of the small intestine. The most common causes of peptic ulcer disease are infection with Helicobacter pylori bacteria and use of nonsteroidal anti-inflammatory drugs (NSAIDs).

Choice D reason: Gastroesophageal reflux disease (GERD) is commonly associated with obesity, as obesity can increase the pressure on the lower esophageal sphincter (LES), the muscle that prevents the backflow of stomach acid into the esophagus. GERD is a condition that causes heartburn, regurgitation, chest pain, and difficulty swallowing due to the reflux of stomach acid into the esophagus. GERD can also lead to esophagitis, Barrett's esophagus, and esophageal cancer.

Choice B reason: Providing low-fat carbohydrates with meals can help reduce nausea and vomiting in clients who have equilibrium imbalance. Low-fat carbohydrates are easy to digest and can provide energy and prevent hypoglycemia. Examples of low-fat carbohydrates are crackers, toast, rice, and noodles.

Choice A reason: Serving hot foods at mealtime is not a good strategy for clients who have nausea from equilibrium imbalance. Hot foods can have strong odors and flavors that can trigger nausea and vomiting. Cold or room-temperature foods are more tolerable and less stimulating for the senses.

Choice C reason: Encouraging the client to eat even if nauseated is not a helpful strategy for clients who have nausea from equilibrium imbalance. Forcing the client to eat can worsen nausea and vomiting and cause discomfort and distress. The nurse should respect the client's preferences and appetite and offer small, frequent meals and snacks.

Choice D reason: Limiting fluid intake between meals is not a necessary strategy for clients who have nausea from equilibrium imbalance. Fluid intake is important to prevent dehydration and electrolyte imbalance, which can occur due to vomiting. The nurse should encourage the client to drink fluids between meals, but avoid drinking fluids with meals, as this can cause bloating and fullness.