Correct Answer: A

Rationale: A boggy and displaced uterus is often a sign of bladder distention, which can prevent the uterus from contracting effectively. The priority intervention is to assist the client to void, which will allow the uterus to return to midline and become firm.

Correct Answer: D

Rationale: Leaving a baby's diaper off to prevent diaper rash is not recommended because it increases the risk of infection. Proper diaper hygiene and frequent diaper changes are more effective in preventing diaper rash.

Correct Answer: A

Rationale: Phototherapy is used to reduce bilirubin levels in newborns with jaundice. However, the intense light can cause damage to the newborn's corneas and retinas. The use of an eye mask protects the infant's eyes while allowing the therapy to proceed. Regular monitoring of the newborn's temperature and hydration status is also important, but the eye mask is a key protective measure.

Correct Answer: A

Rationale: Ampicillin is the recommended antibiotic for treating group B streptococcus infections in pregnant women during labor to prevent neonatal infection.

Correct Answer: A

Rationale: Yellow-tinged skin (jaundice) in a newborn can indicate hyperbilirubinemia. The priority action is to assess the infant's bilirubin levels to determine the severity of the jaundice and the need for further interventions, such as phototherapy.