The nurse is caring for a 4-month-old infant in the emergency department. The nurse reviews the infant's medical record and assessment findings. Which of the following conditions should the nurse suspect, and what actions should the nurse take to address that condition, and what parameters should the nurse monitor to assess the infant's progress?

The nurse should suspect that the infant has

Choice A reason: Subcutaneous insulin is not the preferred route for a client with DKA, as it has a slower onset and peak than IV insulin. IV regular insulin is the preferred route, as it provides a rapid and continuous infusion of insulin that can be titrated according to the blood glucose level.

Choice B reason: IV regular insulin is the medication of choice for a client with DKA, as it lowers the blood glucose level and reverses the ketosis and acidosis. IV regular insulin has a rapid onset and peak, and can be adjusted based on the client's response.

Choice C reason: IV potassium chloride is indicated for a client with DKA, as the client is at risk of hypokalemia due to osmotic diuresis, insulin therapy, and metabolic acidosis. IV potassium chloride can prevent or treat hypokalemia and its complications, such as cardiac arrhythmias.

Choice D reason: Oxygen via nasal cannula is not necessary for a client with DKA, unless the client has signs of hypoxia or respiratory distress. The client's deep and rapid respirations are a compensatory mechanism for the metabolic acidosis, and do not indicate a need for oxygen therapy.

Choice E reason: Sodium bicarbonate is not recommended for a client with DKA, as it can cause paradoxical cerebral acidosis, hypokalemia, and impaired oxygen delivery. The client's acidosis can be corrected by IV insulin and fluid therapy, which will restore the normal metabolism of glucose and ketones.

Choice A reason: This is not a correct instruction for the nurse to include in the teaching. Emphasizing the quantity, rather than the quality, of food consumed may lead to overeating, obesity, or malnutrition. The nurse should encourage the mother to offer a variety of healthy foods in appropriate portions and avoid forcing or bribing the child to eat.

Choice B reason: This is not a correct instruction for the nurse to include in the teaching. Expecting that food consumption might not decrease significantly may cause the mother to ignore the signs of poor nutrition or growth in the child. The nurse should advise the mother to monitor the child's weight, height, and development regularly and consult the provider if there are any concerns.

Choice C reason: This is a correct instruction for the nurse to include in the teaching. Adding fruit juice to the child's diet can increase the vitamin intake, especially vitamin C, which is important for immune function and wound healing. The nurse should recommend the mother to choose 100% fruit juice and limit the amount to 4 to 6 oz per day.

Choice D reason: This is not a correct instruction for the nurse to include in the teaching. Having the child remain at the table after meals to increase food intake may create a negative association with eating and cause more resistance or frustration. The nurse should suggest the mother to make mealtime a pleasant and relaxed experience and respect the child's appetite and preferences.