Correct Answer: A

Rationale: The correct answer is A. By 8 months, an infant should be able to transfer objects between hands, which is an important motor skill milestone. This action shows coordination and developing fine motor skills. Choices B, C, and D involve more advanced motor skills that are typically not expected at 8 months of age. Drinking from a cup, holding a pencil to scribble, and engaging in purposeful play with toys are skills that develop later in infancy.

Correct Answer: C

Rationale: The FACES Pain Rating Scale is suitable for children as young as 3 years of age. It uses facial expressions to depict different levels of pain, making it easy for young children to understand and use. The Poker Chip Tool is validated for children aged 4 and older who have a certain level of cognitive ability. The Visual Analog Scale is more appropriate for children aged 7 and above. The Word-Graphic Rating Scale, which uses descriptive words, is recommended for children in the age range of 4 to 17 years.

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: The oral mucosa and conjunctivae are the best places to observe petechiae in dark-skinned individuals because these areas have less pigmentation.