RN Nursing Care of Children Online Practice 2019 A

Correct Answer: A

Rationale: The correct answer is A: 1 year. By the age of 1 year, a baby's birth weight typically triples. This period allows for significant growth and development in infants. Choices B, C, and D are incorrect because birth weight does not usually triple by 1 month, 2 years, or 6 months of age, respectively.

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: Moderate dehydration is typically defined as a loss of 50 to 90 mL/kg of body weight. This amount reflects significant fluid loss that requires medical attention but is not yet severe.

Correct Answer: D

Rationale: High fever, especially in very young infants, or the presence of a stiff neck can indicate a serious infection requiring immediate attention. A fever lasting more than 3 days also warrants medical evaluation.

Correct Answer: D

Rationale: The correct answer is D, Ritualism. Establishing routines like brushing teeth every night after dinner helps toddlers feel secure and in control. Choice A, Negativism, refers to a child's oppositional behavior. Choice B, Diversionary activity, involves redirecting attention to something else. Choice C, Critical play, does not relate to the scenario of establishing a routine for the toddler.