What causes congenital hip dysplasia?

Choice A reason:

Maternal/newborn blood group incompatibility is the most common cause of pathologic jaundice, which appears within the first 24 hours of life. This occurs when the mother's antibodies attack the newborn's red blood cells, causing hemolysis and increased bilirubin production. The excess bilirubin causes the yellowish discoloration of the skin and mucous membranes.

Choice B reason:

The absence of vitamin K is not related to jaundice but to hemorrhagic disease of the newborn. Vitamin K is essential for blood clotting and is given to newborns as an injection shortly after birth. Newborns are at risk of vitamin K deficiency because they have low levels of vitamin K in their bodies and breast milk, and their intestinal bacteria are not yet able to synthesize vitamin K.

Choice C reason:

Maternal cocaine abuse can cause many complications for the newborn, such as prematurity, low birth weight, neonatal abstinence syndrome, neurobehavioral problems, and congenital anomalies. However, it is not a direct cause of jaundice in the newborn.

Choice D reason:

Physiologic jaundice is a normal and benign condition that affects about 60% of term newborns. It occurs due to the immature liver's inability to metabolize bilirubin effectively. It usually appears after the first 24 hours of life and peaks around the third or fourth day. It does not require treatment unless the bilirubin level is very high or rising rapidly.

Choice A reason:

Attachment phase is not one of Rubin's phases of role attachment. Rubin's theory of maternal role adaptation describes three stages that the mother goes through during the postpartum period: taking in, taking hold and letting go.

Choice B reason:

Letting go phase is the last stage of Rubin's theory of role attachment. It occurs when the mother accepts her new role and gives up her old roles. She also comes to terms with the reality of the birthing experience and the characteristics of her baby.

Choice C reason:

Taking hold phase is the second stage of Rubin's theory of role attachment. It occurs when the mother becomes interested in caring for the infant and learning about her baby and herself. She may be critical about her care-giving abilities and need positive reinforcement.

Choice D reason:

Taking in phase is the first stage of Rubin's theory of role attachment. It occurs right after the birth of the child, when the mother is passive and focused on her own needs, especially sleeping and eating. She may have limited interactions with her infant and prefer to talk about her experiences during labor, birth, and pregnancy. This matches the description of the new mother in the question, so this is the correct answer.