Correct Answer: B

Rationale: In a 3-year-old child with a sudden onset of respiratory distress and no recent illnesses or fever, the likely cause is a foreign body airway obstruction. Foreign body obstruction can lead to sudden respiratory distress without other preceding symptoms. It is crucial to consider this possibility and act promptly to clear the airway in such cases to prevent serious complications.

Correct Answer: D

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

Correct Answer: B

Rationale: In a 3-year-old child with a sudden onset of respiratory distress and no recent illnesses or fever, the likely cause is a foreign body airway obstruction. Foreign body obstruction can lead to sudden respiratory distress without other preceding symptoms. It is crucial to consider this possibility and act promptly to clear the airway in such cases to prevent serious complications.

Correct Answer: C

Rationale: Placing sterile dressings into the vagina is not an appropriate treatment for severe vaginal bleeding. The correct approach involves applying pressure to the external vaginal area to control bleeding, covering the vagina with a trauma dressing to help with compression, administering high concentrations of oxygen to support oxygenation, and keeping the patient warm with blankets to prevent hypothermia. Placing sterile dressings into the vagina can introduce foreign material, increase the risk of infection, and obstruct proper wound management, making it an incorrect treatment option in this scenario.

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.