Certified Registered Nurse Anesthetist (CRNA) Practice Exam

What is the most common offender in foreign body aspiration?

1. Small coins

2. Organic substances like nuts and corn

3. Pieces of toys

4. Hard candy

The correct answer is: Organic substances like nuts and corn

The most common offender in foreign body aspiration is organic substances like nuts and corn. This is primarily due to their common presence in daily diets, especially among children, who are more likely to put small food items in their mouths. Organic materials can also create a higher risk of airway obstruction, as they may swell when exposed to moisture, further complicating the situation during aspiration events. The biological nature of these items can lead to an inflammatory response if they become lodged in the airway, which is a critical concern for healthcare providers. The other options, while they may also pose risks of aspiration, do not occur as frequently as organic food items. Small coins and pieces of toys are less commonly aspirated compared to food items, especially in younger children who are still learning about appropriate eating practices. Hard candy, although potential aspirators, often presents a different risk due to choking rather than complete airway obstruction, as it is less likely to swell and cause significant inflammatory responses.