A nurse is caring for a client who has gastroenteritis and is reviewing the client's findings from two days ago and today. Which of the following findings require immediate follow-up?

Choice A reason: Green tea is not a beverage that enhances the absorption of nonheme iron, but rather inhibits it. Green tea contains tannins, which are compounds that bind to iron and prevent its absorption. The nurse should advise the client to avoid drinking green tea or other beverages that contain tannins, such as black tea, with meals that contain iron.

Choice B reason: Coffee is not a beverage that enhances the absorption of nonheme iron, but rather inhibits it. Coffee also contains tannins, as well as caffeine, which can interfere with iron absorption. The nurse should recommend the client to limit or avoid coffee intake, especially with iron-rich foods.

Choice C reason: Milk is not a beverage that enhances the absorption of nonheme iron, but rather inhibits it. Milk contains calcium, which can compete with iron for absorption. The nurse should suggest the client to consume milk and other dairy products separately from iron-containing foods.

Choice D reason: Orange juice is a beverage that enhances the absorption of nonheme iron, as it is rich in vitamin C. Vitamin C can increase the absorption of nonheme iron by converting it from the ferric form to the more absorbable ferrous form. The nurse should encourage the client to drink orange juice or other citrus juices with meals that contain iron.

Choice D reason: A calorie reduction of 500 fewer calories per day can result in a weight loss of about 0.45 kg (1 lb) per week, which is a safe and realistic goal for most clients. A pound of fat contains about 3,500 calories, so reducing the daily intake by 500 calories can create a deficit of 3,500 calories per week.

Choice A reason: A weight loss of 0.45 kg (1 lb) per day is too rapid and unhealthy, as it can cause dehydration, electrolyte imbalance, muscle loss, and metabolic slowdown. It can also be unsustainable and lead to weight regain. A calorie reduction of 500 fewer calories per day cannot achieve such a drastic weight loss.

Choice B reason: A weight loss of 0.23 kg (0.5 lb) per day is also too rapid and unhealthy, for the same reasons as choice A. A calorie reduction of 500 fewer calories per day cannot achieve such a drastic weight loss.

Choice C reason: A weight loss of 0.23 kg (0.5 lb) per week is too slow and unlikely, as it would require a calorie reduction of only 250 fewer calories per day. This is not enough to create a significant deficit and stimulate weight loss. A calorie reduction of 500 fewer calories per day can result in a faster weight loss.