Certified Flight Registered Nurse (CFRN) Practice Exam

What is the minimum number of hours after alcohol consumption an aircrew member must wait to perform their work duties?

1. 6 hours

2. 8 hours

3. 10 hours

4. 12 hours

The correct answer is: 8 hours

Aircrew members are subject to specific regulations regarding alcohol consumption to ensure safety and operational readiness. The correct answer, which states that an aircrew member must wait a minimum of 8 hours after alcohol consumption before performing work duties, aligns with the Federal Aviation Administration (FAA) guidelines. This time frame is intended to allow sufficient clearance of alcohol from the bloodstream, helping to prevent impairment while ensuring that crew members operate at peak performance levels. This standard reflects an understanding of how the body metabolizes alcohol and aims to mitigate the risks associated with flying while under the influence. The 8-hour guideline is a critical component for maintaining safety in aviation, as it helps to foster a culture of responsibility and accountability among aircrew members. Maintaining this standard is essential for both individual safety and the safety of passengers and crew during flight operations.