Correct Answer: D

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

Correct Answer: C

Rationale: The most appropriate action is to assist the child back to their room for the treatment but reassure them that they may return when the procedure is completed. This approach ensures that the child receives the necessary treatment while also acknowledging their desire to continue playing in the playroom. Choice A is incorrect because it suggests moving the child to the room and asking the child-life specialist to bring toys, which may not be necessary. Choice B is incorrect as rescheduling the treatment may not be in the best interest of the child's health. Choice D is incorrect as the nurse should guide the child back to their room for the treatment.

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.

Correct Answer: D

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

Correct Answer: A

Rationale: The correct response is A. Solid foods, especially iron-fortified cereals, are introduced to meet the infant's increased nutritional needs, including iron, which breast milk alone may not provide adequately. Choice B is incorrect because the extrusion reflex is related to the tongue-thrust reflex, not the nutritional needs of the infant. Choice C is incorrect as breastfeeding does not become painful when the infant gets more teeth, and it is not a reason for introducing solid foods. Choice D is incorrect as the infant's interest in trying new skills is not a primary reason for introducing solid foods at this age.