The IDHS should contact the flight surgeon when a patient has an undetermined fever persisting for 48 hours at what temperature?

• A. 101 F
• B. 102 F
• C. 104 F
• D. 100 F

Answer: (B)

Persistent fever in an aviator is a safety flag because fever can impair alertness, reaction time, and judgment, which are crucial for safe flight. When an undetermined fever lasts 48 hours, involving the flight surgeon at the 102°F mark ensures a medical evaluation to rule out conditions that could worsen or affect performance. Fevers around 100–101°F are often mild and self-limiting, so they can be monitored, while a fever at 104°F indicates a more urgent situation. The 48-hour duration emphasizes that the illness isn’t resolving on its own, warranting medical guidance on fitness for duty and any needed treatment or restrictions.