When dealing with COVID-19, doctors and hospital staff had an issue with the way "Chicago Fire" portrayed life within the hospital walls during a pandemic (via Showbiz Cheat Sheet). Dick Wolf, the show's creator, knew they missed the mark with the show's 8th season when it came to accuracy, but fans who work in the medical field were not afraid to remind them.

Medical personnel on Reddit were sounding off about their thoughts on the show's portrayal of medical accuracy. One user wrote, "I am a Respiratory Therapist currently navigating a new life treating COVID patients. I enjoy all three of the Chicago shows but they missed the mark when it comes to correct medical terminology as well as the alarms they use." They continued, " Dr. Choi was discussing poor "oxygenation " to the wife of a dying COVID patient. He states that they even added nitrous oxide instead of nitric oxide. These are not the same gases at all nor are they used interchangeably. They also use alarms for a machine they aren't even using. I thought these shows used advisers."