Correct Answer: D

Rationale: Covering the newborn's head with a cap is the highest priority immediately following birth to prevent heat loss. Newborns are at risk of hypothermia due to their immature thermoregulation, making it crucial to maintain their body temperature. By covering the newborn's head with a cap, heat loss through the head is minimized, helping to keep the baby warm and stable in the immediate post-birth period. Initiating breastfeeding, performing the initial bath, and giving a vitamin K injection are important interventions but are not as high a priority as ensuring the newborn's thermal stability.

Correct Answer: A

Rationale: In a newborn with respiratory distress syndrome who has received synthetic surfactant, monitoring oxygen saturation is crucial to evaluate the effectiveness of the treatment. Oxygen saturation levels provide valuable information about the newborn's respiratory status and the adequacy of gas exchange. Changes in oxygen saturation can indicate improvements or deterioration in the newborn's condition following the administration of synthetic surfactant. Monitoring oxygen saturation helps the nurse assess the newborn's response to treatment and make timely interventions if needed. Body temperature, serum bilirubin, and heart rate are important parameters to monitor in newborns for other conditions but are not specific indicators of the effectiveness of synthetic surfactant in treating respiratory distress syndrome.

Correct Answer: D

Rationale: A displaced and boggy fundus in a postpartum client typically indicates a full bladder, which can impede uterine contractions and increase the risk of postpartum hemorrhage. Assisting the client to the bathroom to void helps ensure the bladder is empty, aiding the fundus to contract and reducing the risk of complications. Encouraging Kegel exercises, changing positions, or assessing pain would not directly address the issue of the boggy fundus caused by a full bladder.

Correct Answer: B

Rationale: The correct answer is B because the client needs a second varicella vaccination at the postpartum visit to ensure immunity. Option A is incorrect as it implies a future need for a second vaccination without a clear action plan. Option C is incorrect as the varicella vaccine is primarily for the client's protection, not others. Option D is not the appropriate action as waiting to be tested for immunity delays the necessary second vaccination.

Correct Answer: D

Rationale: Positioning the newborn skin-to-skin on the client's chest is the priority action to promote warmth, regulate the newborn's heart rate and breathing, and enhance parent-infant bonding. This method facilitates early bonding, stabilizes the baby's temperature, and encourages breastfeeding initiation. Encouraging parents to touch and explore the newborn's features is important but not the priority at this moment. Limiting noise and interruptions can be beneficial but not as crucial as skin-to-skin contact for bonding. Placing the newborn at the client's breast is essential for breastfeeding but should come after the initial skin-to-skin contact for bonding and temperature regulation.