Correct Answer: A

Rationale: The Advisory Committee on Immunization Practices (ACIP) of the Centers for Disease Control and Prevention (CDC) and American College of Obstetricians and Gynecologists recommend that pregnant adolescents and women without protection against pertussis should receive the Tdap vaccine ideally between 27 and 36 weeks of gestation or postpartum before discharge from the hospital. This timeframe allows for the development of antibodies in the mother to protect her and provide passive immunity to the infant. Administering the vaccine during the first trimester (Choice D) is not recommended as the optimal time is between 27 and 36 weeks. Choice B, during the first prenatal visit, is too early for optimal protection, and Choice C, 24 hours prior to delivery, does not provide enough time for the vaccine to be effective before birth.

Correct Answer: D

Rationale: The correct answer is D, 'Parallel.' Parallel play is a common play pattern observed in toddlers where they play alongside each other without direct interaction. This type of play allows toddlers to observe and mimic each other's actions, aiding in their social development. Choices A, B, and C are incorrect. Associative play involves some interaction between children, team play involves organized group activities, and solitary play is when a child plays alone, all of which are not typically exhibited by toddlers during play.

Correct Answer: A

Rationale: Letting an infant cry for prolonged periods can exacerbate colic and increase the infant's distress. It is better to respond promptly to soothe the baby. Other methods like swaddling, gentle massage, and keeping the infant upright can help relieve colic symptoms.

Correct Answer: D

Rationale: Ringworm is a fungal infection that spreads through direct and indirect contact. Good hygiene practices can help prevent its spread.

Correct Answer: B

Rationale: Performing a baseline physical and behavioral assessment is crucial to determine the infant's current health status and to identify any potential risks before surgery.