Correct Answer: B

Rationale: When a parent expresses concern about a child's development, it is essential to conduct a comprehensive assessment of all areas of development before jumping to conclusions. Choosing option B allows the nurse to evaluate the child for other age-appropriate developmental milestones to determine if there are any delays or concerns. Admitting the child to the hospital (option A) is not necessary at this point and may cause unnecessary stress. Suggesting hearing impairment (option C) without proper evaluation can lead to misdiagnosis. Explaining a significant developmental delay (option D) should only be done after a thorough assessment and diagnosis.

Correct Answer: B

Rationale: To maintain the skin integrity of a preterm infant born at 30 weeks, the nurse should bathe the infant with sterile water no more than two or three times per week. The eyes, oral and diaper areas, and pressure points should be cleansed daily. It is essential to avoid using alkaline-based soaps as they might destroy the 'acid mantle' of the skin. Additionally, cleansing with mild solutions and rinsing thoroughly with plain water is recommended to prevent skin irritation and maintain skin integrity. Therefore, options A, C, and D are incorrect as they do not align with the best practices for preterm infant skin care.

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.

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: Significant head lag at 8 months is concerning and warrants further evaluation, as it may indicate developmental delays or neurological issues.