Correct Answer: A

Rationale: Directly asking the adolescent if she is sexually active is the most straightforward and respectful approach, ensuring privacy and fostering trust.

Correct Answer: D

Rationale: It is essential to use the correct cuff size for accurate blood pressure readings; if the proper size is not available, it's best to wait until it can be obtained.

Correct Answer: C

Rationale: The correct answer is C. Fetal hemoglobin (HbF) is present in high levels during early infancy, inhibiting sickling unlike adult hemoglobin (HbS). As the levels of HbF decrease and HbS increases, the risk of sickling and crises becomes more pronounced, typically after 6 months of age. Choice A is incorrect because it assumes the crisis went unnoticed, which is not supported by medical knowledge. Choice B is incorrect as it questions the child's diagnosis rather than explaining the phenomenon of delayed crises. Choice D is incorrect as it does not provide the parents with the necessary information regarding their query.

Correct Answer: B

Rationale: Climbing is a gross motor milestone typically achieved between 2 to 3 years of age. It involves coordination and strength. Jumping in place is usually mastered around 2 years of age. Standing on one foot with help is a skill that emerges around 3 years. Riding a tricycle typically occurs closer to 3 years and involves coordination and balance, which are more refined skills compared to climbing at an earlier age.

Correct Answer: C

Rationale: In extremely low-birth-weight (ELBW) infants, a thorough systemic physical assessment is crucial to detect subtle changes that may indicate an underlying problem. These infants are highly vulnerable and may show signs of stress through changes in feeding behavior, activity, color, oxygen saturation, or vital signs. Monitoring weight in ELBW infants primarily reflects genitourinary function rather than fluid retention. Difficulties in maternal-child attachment are important but are usually assessed during parental visits and are not the primary focus of a systemic physical assessment. Changes in the Apgar score are used immediately after birth to assess the transition to extrauterine life and are not as relevant in the following 24 hours to detect ongoing subtle issues.