The nurse is examining an infant for hip placement and has abducted her flexed legs. The nurse should next:

Correct Answer: C

Rationale: In this scenario, the nurse is performing Ortolani's maneuver, which is used to assess for developmental dysplasia of the hip (DDH) in infants. After abducting the infant's flexed legs, the nurse should then listen for a "click" that may indicate hip instability. A positive click suggests subluxation of the femoral head and may indicate the presence of DDH. It is important for the nurse to recognize this finding promptly and report it to the healthcare provider for further evaluation and management. Rotation of the hips, extending the legs, and palpating for a mass are not the appropriate next steps in this specific assessment for DDH.

Correct Answer: A

Rationale: Cretinism is a condition caused by congenital hypothyroidism. Common features of cretinism include umbilical hernia, wet skin, and feeding problems. Prolonged jaundice is not typically associated with cretinism. Jaundice is more commonly seen in conditions such as neonatal hepatitis or biliary atresia.

Correct Answer: D

Rationale: The most critical physiologic change required of the newborn is the onset of breathing. Prior to birth, the fetus receives oxygen from the mother's blood through the placenta. However, once the newborn is delivered, it needs to begin breathing on its own to support oxygen exchange and remove carbon dioxide from the body. The respiratory system must transition from a fluid-filled state in the womb to an air-filled state outside the womb. The onset of breathing is essential for the newborn's survival and initiates the process of oxygenation of tissues and removal of carbon dioxide, which are vital for metabolism and overall physiological functioning. While closure of fetal shunts, stabilization of fluid and electrolytes, and body-temperature maintenance are also important changes that occur in the newborn, the onset of breathing is the most critical to ensure proper oxygenation of the body's tissues.

Correct Answer: A

Rationale: Milia are distended sebaceous glands that appear as tiny white papules on the cheeks, chin, and nose in the newborn period. They are commonly found in newborns and usually resolve on their own without treatment. Milia are not harmful and are considered a normal physiological occurrence in newborns. Lanugo refers to fine, downy hair covering newborn infants, Mongolian spots are blue-grey birthmarks usually found on the lower back or buttocks of newborns, and Cutis marmorata is a vascular mottling of the skin in newborns.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.