Correct Answer: C

Rationale: Implanted ports like the Port-a-Cath are fully implanted under the skin, allowing the child to maintain regular physical activities, including swimming, without the risk of dislodging the catheter. Piercing the skin is still required for access, and self-administration is more complex.

Correct Answer: D

Rationale: The correct answer is D: Growth restriction in weight, length, and chest and head circumference. Infants born to mothers who smoke during pregnancy exhibit growth failure in weight, length, chest, and head circumference. This growth failure is directly related to the number of cigarettes smoked by the mother. Choices A, B, and C are incorrect because infants exposed to maternal smoking do not tend to be large for gestational age, experience growth restriction in weight only, or be preterm but size appropriate for gestational age.

Correct Answer: D

Rationale: The correct answer is D: Hypertension. Nephroblastoma, also known as Wilms' tumor, often causes hypertension due to its impact on the kidney, which plays a role in regulating blood pressure. Atrial fibrillation (choice A) and endocarditis (choice B) are not typically associated with nephroblastoma. Hyperlipidemia (choice C) is also not a common clinical manifestation of nephroblastoma.

Correct Answer: C

Rationale: The correct answer is C because it acknowledges the child's feelings, provides clear instructions, and offers comfort and rewards to help the child cope with the procedure. Choice A is not appropriate as it may create anxiety about the injection. Choice B uses the term 'magic,' which may confuse the child and lead to fear. Choice D introduces a fantasy element that may not be beneficial in preparing the child for the injection.

Correct Answer: B

Rationale: Starting the IV as planned while allowing the child to express feelings afterward helps build trust and ensures the timely administration of necessary antibiotics. Delaying the procedure or changing the route could compromise the child's treatment.