Prisoners, Detainees and Parolees - Special Patient and Personnel Considerations

What is the most important fact for police or correctional officers to know about an MRI machine's status?. It is only dangerous when a patient is currently being scanned. The magnetic field is "always on" 24 hours a day, 365 days a year. The magnet turns off automatically when the computer shuts down. The magnetic field is only active during the daytime.

Why must metal handcuffs, shackles, or chains be removed before a prisoner enters the MRI scan room (Zone IV)?. They interfere with the Wi-Fi signal of the scanner. They can become dangerous projectiles or pin the individual to the magnet with extreme force. They cause the room temperature to drop significantly. They cause the room temperature to drop significantly.

If a police officer is escorting a detainee, what must the officer do before entering the MRI room?. Keep their service weapon always holstered for safety. Leave all ferromagnetic items (firearms, badges, handcuffs, radios) outside the room. Ensure their metal flashlight is turned on to see inside the machine. Wear a lead apron to block the magnetic field.

A 3-Tesla MRI magnet is approximately much stronger than the Earth's magnetic field. 100 times. 1,000 times. 60,000 times. 1,000,000 times.

Which of the following medical implants would typically bar a prisoner or parolee from entering the MRI room?. Plastic dental fillings. Ferromagnetic cerebral aneurysm clips or pacemakers. A temporary cloth bandage. A standard fiberglass arm cast.

If a detainee needs to be removed from the MRI unit in an emergency, who is authorized to move them?. Only trained MRI personnel using MRI-compatible equipment. Any police officer on the scene. The detainee's legal counsel. The hospital security guard.

Does the "Emergency Power Off" (EPO) button stop the magnetic field?. Yes, it instantly disables the magnet. No, it only cuts electrical power to the computer and power units; the magnet remains on. It only works if the "Quench" button is pressed simultaneously. It only works for 30 seconds before the magnet restarts.

What is the "Quench" button used for in a law enforcement context?. To turn off the lights in the MRI suite. To collapse the magnetic field, used only if a person is pinned/impaled by a metal object and in life-threatening danger. To restart the scanner if it freezes. To unlock the magnetic locks on the facility's exit doors.

In the event of a "Quench," what is the primary respiratory danger to officers and detainees in the room?. Smoke from an electrical fire. Asphyxiation due to helium gas displacing oxygen. Exposure to carbon monoxide. High levels of humidity.

What is the protocol for firefighters or police officers responding to a fire in the MRI room?. Use any standard fire extinguisher immediately. Use only non-ferromagnetic (MRI-safe) extinguishers or attack the fire from outside the room. Smash the MRI machine with an axe to release the cooling gas. Wait at least 10 feet away and let the fire burn out naturally.