Correct Answer: C

Rationale: When inserting an oropharyngeal airway in a small child, it is crucial to depress the tongue with a tongue blade and insert the airway with the downward curve facing the tongue. This technique helps in maintaining an open airway and preventing obstruction by the tongue. Placing the airway with the curve facing the roof of the mouth or using a smaller size is not recommended for small children, as it may not effectively keep the airway patent. The tongue-jaw lift maneuver is not the preferred method for inserting an oropharyngeal airway in small children.

Correct Answer: D

Rationale: For a responsive 4-year-old child with a mild airway obstruction, respiratory distress, a strong cough, and normal skin color, the appropriate treatment includes providing supplemental oxygen and arranging for transport to a healthcare facility. Oxygen helps alleviate the respiratory distress, and transport ensures the child receives further evaluation and care by healthcare professionals. Back slaps and subdiaphragmatic thrusts are not recommended for a child with a mild airway obstruction and normal skin color, as these interventions are typically reserved for more severe cases of airway obstruction.

Correct Answer: C

Rationale: In a child with increased work of breathing, a high-pitched sound during inhalation, and a high fever, upper airway obstruction should be suspected. The child's condition may require immediate ventilation assistance to ensure adequate oxygenation and ventilation. Therefore, the most immediate concern in this scenario is to assess the need for ventilation assistance.

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: B

Rationale: The correct approach to prevent cardiac arrest in infants and small children is to ensure adequate ventilation. In these cases, maintaining proper oxygenation and ventilation is crucial for sustaining life. Providing immediate transport, keeping the child warm, or avoiding upsetting the child are important considerations but ensuring adequate ventilation takes precedence in preventing cardiac arrest and supporting the child's vital functions.