A nurse is educating the parent of a school-age child about the importance of maintaining water intake to prevent dehydration. Which of the following food choices should the nurse recommend as containing the greatest percentage of water?

Choice B reason: Older adults should decrease their calorie intake as their metabolic rate and physical activity tend to decline with age. Excess calories can lead to weight gain and increase the risk of chronic diseases such as diabetes, cardiovascular disease, and some cancers. Older adults should aim for a balanced diet that meets their nutritional needs without exceeding their energy requirements.

Choice A reason: Older adults should not decrease their vitamin D intake, as vitamin D is essential for bone health and immune function. Older adults are at risk of vitamin D deficiency due to reduced sun exposure, decreased skin synthesis, and impaired absorption. Vitamin D deficiency can cause osteoporosis, fractures, muscle weakness, and infections. Older adults should consume adequate amounts of vitamin D from fortified foods, supplements, or sun exposure.

Choice C reason: Older adults should not decrease their protein intake, as protein is important for maintaining muscle mass, strength, and function. Older adults are prone to sarcopenia, which is the loss of muscle mass and quality due to aging. Sarcopenia can impair mobility, balance, and independence. Older adults should consume enough protein from animal or plant sources to prevent or delay sarcopenia.

Choice D reason: Older adults should not decrease their fiber intake, as fiber is beneficial for digestive health and blood glucose control. Older adults often suffer from constipation, diverticular disease, and diabetes, which can be alleviated by increasing fiber intake. Fiber can also lower cholesterol levels and reduce the risk of heart disease and some cancers. Older adults should consume at least 25 grams of fiber per day from fruits, vegetables, whole grains, legumes, nuts, and seeds.

Choice A reason: Dyspnea is a sign of pulmonary edema, which can occur as a complication of parenteral nutrition due to fluid overload or allergic reaction¹². The nurse should monitor the client's respiratory status and oxygen saturation and report any signs of respiratory distress.

Choice B reason: Parenteral nutrition should not be infused by gravity, as this can cause fluctuations in the infusion rate and lead to hyperglycemia or hypoglycemia¹³. The nurse should use an infusion pump to deliver parenteral nutrition at a constant and controlled rate.

Choice C reason: Parenteral nutrition solution should be administered within 30 min after removing from the refrigerator, as prolonged exposure to room temperature can increase the risk of bacterial contamination and infection¹⁴. The nurse should check the expiration date and inspect the solution for any discoloration, cloudiness, or particulate matter before administration.

Choice D reason: Parenteral nutrition bag and infusion tubing should be changed every 24 hr, not every 72 hr, to prevent the growth of microorganisms and reduce the risk of infection¹⁵. The nurse should use aseptic technique when changing the bag and tubing and follow the facility's protocol for dressing changes and catheter care.

Choice E reason: Parenteral nutrition should be started only after the central venous catheter position is confirmed by radiology, as incorrect placement can cause serious complications such as pneumothorax, hemothorax, or cardiac tamponade¹⁶. The nurse should obtain a chest x-ray and wait for the provider's confirmation before initiating parenteral nutrition.