RN Nursing Care of Children Online Practice 2019 A

Correct Answer: D

Rationale: Both metabolic and respiratory alkalosis can cause overexcitability and nervous system stimulation due to a decrease in ionized calcium levels, which can cause symptoms such as tetany and paresthesias. Acidosis typically has the opposite effect, leading to depression of the nervous system.

Correct Answer: C

Rationale: Infants have immature kidneys that are less efficient at concentrating urine, making them more susceptible to fluid imbalances. Their higher surface area to volume ratio also contributes to greater insensible fluid losses.

Correct Answer: B

Rationale: Breast milk or formula should be used for now because whole cow's milk is not recommended for infants under 1 year. Cow's milk is not suitable for infants under 1 year of age as it lacks essential nutrients like iron and can lead to iron deficiency. Therefore, it is important to continue with breast milk or formula to ensure the baby's nutritional needs are met. Choice A is incorrect as cow's milk is not easier to digest than formula for infants. Choice C is incorrect as the type of milk, whether whole or skim, is not the primary concern at this age. Choice D is incorrect as cow's milk can actually increase the risk of iron deficiency anemia in infants.

Correct Answer: D

Rationale: The fluid requirement for a 14-kg child is approximately 100 mL/kg/day, so for a 14-kg child, the requirement is around 1400 mL/day.

Correct Answer: A

Rationale: After rehydration, a regular diet is generally recommended to ensure proper nutrition and recovery. A regular diet includes a balanced intake of all food groups and nutrients. Fruit juices may be too high in simple sugars and lack necessary nutrients, which can exacerbate diarrhea. While a high carbohydrate diet may be beneficial in some cases, a regular diet is more comprehensive. The BRAT diet, consisting of bananas, rice, apples, and toast or tea, was previously recommended for diarrhea, but it lacks adequate protein and fat, so a regular diet is now preferred for overall better nutrition and recovery.