Correct Answer: D

Rationale: A respiratory rate of 50 breaths per minute with occasional periods of apnea lasting less than 15 seconds is normal for a newborn. The nurse should continue routine monitoring unless the apneic periods become prolonged or the newborn shows signs of respiratory distress.

Correct Answer: B

Rationale: A perineal pad saturated in 15 minutes is a sign of excessive postpartum bleeding, which requires immediate medical attention to prevent postpartum hemorrhage. The other findings are normal postpartum occurrences.

Correct Answer: A

Rationale: Magnesium sulfate is administered to prevent seizures in clients with severe preeclampsia. It acts as a central nervous system depressant and is the first-line treatment for eclampsia prevention.

Correct Answer: D

Rationale: Calcium is vital during pregnancy for fetal bone development and to prevent maternal bone loss. The recommended daily intake should be increased to support these needs.

Correct Answer: C

Rationale: The correct course of action after missing oral contraceptive pills depends on how many pills are missed. If three pills are missed, the client should not 'double up' but rather follow the manufacturer's instructions and use an alternative form of contraception until the next cycle. Taking too many pills at once increases the risk of side effects without restoring contraceptive protection.