When the newborn's crib was moved suddenly, the nurse noticed that his legs flexed and the arms fanned out, and then both came back toward the midline. The nurse would interpret this behavior as:

The Moro reflex was elicited. This is because the Moro reflex is a normal newborn reflex that occurs when the baby is startled by a loud noise or a sudden movement. The baby responds by extending the arms and legs, opening the hands, and then bringing the arms and legs back to the chest.

The Moro reflex is present at birth and disappears by 3 to 6 months of age.

Choice B is wrong because this is not abnormal for a full-term infant. The Moro reflex is a sign of a healthy nervous system and brain development.

Choice C is wrong because there is no evidence of an abnormality in the musculoskeletal system. The Moro reflex does not indicate any problems with the bones or muscles of the baby.

Choice D is wrong because the full-term infant should react to sudden movement. The Moro reflex is a protective response that helps the baby cling to the mother in case of danger.

Ineffective airway clearance related to mucus and water secretions. This is because newborns who are born via cesarean delivery are at risk for respiratory distress due to the lack of compression of the chest during birth. This can result in retained mucus and fluid in the lungs that can interfere with breathing and oxygenation. The nurse should prioritize clearing the airway and monitoring the respiratory status of the newborn.

Choice A is wrong because ineffective thermoregulation related to heat loss to the environment is not specific to cesarean delivery. All newborns are prone to heat loss due to their large surface area and thin skin. The nurse should maintain a warm and dry environment for the newborn and prevent exposure to cold surfaces.

Choice B is wrong because altered nutrition less than the body requirement related to limited formula intake is not specific to cesarean delivery. All newborns need adequate nutrition to support their growth and development. The nurse should monitor the intake and output of the newborn and assist with feeding as needed.

Choice C is wrong because altered urinary elimination related to post- circumcision status is not specific to cesarean delivery. Circumcision is an elective procedure that may or may not be performed on male newborns. The nurse should provide wound care and pain relief for the circumcised newborn and observe for signs of infection or bleeding.