Correct Answer: D

Rationale: The appropriate ventilation rate for an infant with an advanced airway is 8 to 10 breaths per minute.

Correct Answer: A

Rationale: In this scenario, the mother is showing signs of postpartum hemorrhage with increased heart rate, diaphoresis, and mild vaginal bleeding. The correct approach involves treating for shock by addressing hypovolemia and providing uterine massage to help control bleeding. Administering high-flow oxygen is essential. Therefore, the most appropriate option is to treat for shock and perform uterine massage during transport to manage the postpartum hemorrhage effectively.

Correct Answer: D

Rationale: The symptoms of swollen ankles, tight rings, and elevated blood pressure in a pregnant woman at 22 weeks gestation are concerning for preeclampsia. Preeclampsia is characterized by high blood pressure and signs of organ damage, commonly seen with symptoms such as swelling (edema) and protein in the urine. It is crucial to monitor and manage preeclampsia promptly as it can lead to severe complications for both the mother and the baby.

Correct Answer: C

Rationale: Small children should ride in the backseat of a vehicle primarily to avoid severe injury or death that may occur if the airbag deploys. In the event of a crash, the force of an airbag deployment can be dangerous for a child seated in the front seat. Placing them in the backseat reduces the risk of serious harm from airbag impact and is a safer seating position for young passengers.

Correct Answer: B

Rationale: Dehydration is the most common cause of shock in infants and children. In children, the body's fluid reserves are smaller compared to adults, making them more susceptible to dehydration, which can lead to shock if not promptly addressed. Severe allergic reactions, accidental poisoning, and cardiac failure can also cause shock, but dehydration is the most frequent cause in this age group.