Correct Answer: B

Rationale: The correct answer is B: Tanner staging. Tanner staging is a tool specifically used to assess sexual maturity in adolescents based on the development of secondary sexual characteristics. The Tanner scale ranges from stage 1 (prepubertal) to stage 5 (adult maturity). This tool helps healthcare providers evaluate the physical development and sexual maturation of individuals. Choice A, the Denver II Developmental Screening, is used to assess developmental milestones in children. Choice C, antibody testing, is a diagnostic tool used to detect the presence of specific antibodies in the blood. Choice D, the nursing process, is a systematic method that nurses use to deliver patient-centered care, involving assessment, diagnosis, planning, implementation, and evaluation.

Correct Answer: D

Rationale: In a preschooler, chest movement should be symmetric and coordinated with breathing, indicating healthy respiratory function.

Correct Answer: D

Rationale: Upper arm circumference correlates best with total muscle mass because it includes both muscle and fat components, making it a reliable indicator of muscle mass.

Correct Answer: C

Rationale: The correct technique involves placing the thermometer tip in the center of the axilla to ensure an accurate reading, with the arm held close to the body.

Correct Answer: C

Rationale: The correct answer is C: Cigarette smoking. Discussing sensitive topics like cigarette smoking in the presence of a parent may inhibit the teenager's willingness to be open and honest. It's important to provide an opportunity for the teenager to speak privately with the healthcare provider. Choices A, B, and D are more general topics that can be discussed openly in front of the parent without compromising the teenager's privacy or comfort.