Certified Transport Registered Nurse Certification Practice Exam

During which phase of a flight is it critical to monitor for pressure-related injuries?

1. Cruise altitude

2. Descent

3. Takeoff

4. All phases equally

The correct answer is: All phases equally

Monitoring for pressure-related injuries is crucial during all phases of a flight due to the potential for changes in cabin pressure that can affect passengers and crew. During takeoff, the aircraft is climbing to cruising altitude, which involves a rapid change in pressure. This can cause discomfort and pressure-related injuries, especially for individuals with pre-existing conditions such as sinus issues or ear problems. During the cruise altitude phase, although the pressure stabilizes, there is still a risk for pressure-related injuries, particularly in cases where cabin pressure may not be maintained at a safe level. Additionally, the effects of lower ambient pressure on gas expansion in the body can also pose risks. Descent presents another critical time for monitoring as the aircraft decreases in altitude, prompting changes in pressure that may lead to difficulty equalizing pressure in the ears and other air-filled cavities of the body. This can lead to barotrauma or other complications. Given that pressure-related injuries can occur at any instance during the flight—whether during takeoff, cruise, or descent—it's essential to maintain vigilance throughout the entire flight to ensure the safety and comfort of everyone on board. Therefore, the decision to monitor consistently across all phases reinforces the holistic approach needed to manage pressure-related risks effectively.