Correct Answer: B

Rationale: Adolescents often seek guidance and support from their peers. Setting up a meeting with older teens who are effectively managing chronic renal failure can provide the 14-year-old with motivation, encouragement, and practical advice on how to handle their treatment regimen. This peer support can positively influence the non-compliant adolescent, making choice B the most likely intervention to improve compliance. Choices A and C may not address the peer influence aspect of adolescent behavior, while choice D focuses on punitive measures rather than addressing the underlying reasons for non-compliance.

Correct Answer: B

Rationale: A neonate normally loses about 10% of the birth weight by age 3 to 4 days. The birth weight is usually regained by the 10th day of life. In this case, the weight loss from 3400 g to 3147 g is within the expected range. Therefore, the most appropriate action is to explain to the mother that this weight loss is within normal limits. Choice A is incorrect because supplemental feedings of formula are not indicated for this expected weight loss in a breastfed newborn. Choice C is incorrect as there is no evidence to suggest excessive weight loss at this point. Choice D is unnecessary at this stage and may not align with the current situation of normal weight loss post-birth.

Correct Answer: B

Rationale: Infants typically begin to smile in response to pleasurable stimuli by 2 months, which is an early sign of social interaction and emotional development.

Correct Answer: B

Rationale: At 2 months, infants are most stimulated by visual and auditory activities, such as a music box or soft mobiles. These activities help in sensory development and are appropriate for this age.

Correct Answer: B

Rationale: The primary nursing concern in this situation is the risk for aspiration. Popcorn is a choking hazard for infants, as their airway is not fully developed to handle solid foods like popcorn. Choices A, C, and D are incorrect because the main focus should be on the immediate risk of aspiration due to the inappropriate solid food given to the infant, rather than on nutritional imbalances or readiness for enhanced nutrition.