Siemens Safety Part 2

In a shielded high-field MRI system, how is the attractive magnetic force on a metal object described?. It increases slowly as you walk across the room. It is a weak force that only affects objects heavier than 50 lbs. It arises very suddenly and with extreme power as you get close to the magnet. It only pulls objects that are directly inside the center of the bore.

According to the video, the magnetic pull on a pair of scissors in a 3 Tesla system is how many times stronger than the weight of the scissors?. 10 times. 25 times. 50 times. 100 times.

What is the main difference between an object labeled "MR Safe" and one labeled "MR Compatible"?. "MR Safe" means it is plastic; "MR Compatible" means it is aluminum. "MR Safe" presents no risk to the patient; "MR Compatible" also ensures the object won't distort the diagnostic quality of the image. There is no difference; they mean the same thing. "MR Compatible" objects are only allowed in the waiting room.

Which of the following items is strictly forbidden inside the MRI scan room because it can become a dangerous projectile?. A plastic hair clip. A standard hospital oxygen tank or fire extinguisher. A wooden cane. A paper cup.

If a patient has a metal implant but the exact model and type are unknown, what must be done before the scan?. The patient must sign a waiver and proceed. The patient should be scanned at a faster speed to avoid heating. The implant must be identified, often by using X-ray or CT to verify its safety. The technologist should use a handheld magnet to see if the patient's skin moves.

Which "Risk Group" requires special attention regarding their body temperature and thermoregulation during an MRI?. Professional athletes. Children and intensive care patients. Patients with broken bones. Patients with a history of hay fever.

Why are tattoos a concern during the MRI screening process?. They can make the image look blurry. They may contain metallic pigments that can cause skin burns during the scan. They indicate the patient might be allergic to the scanner. They interfere with the intercom system.

What must happen with the patient's screening questionnaire before they are allowed into the magnet room?. It only needs to be filled out by the patient's family. It must be signed by the patient and reviewed/signed by qualified medical personnel. It can be discarded once the patient enters the room. It is only required if the patient is over 65 years old.

For intensive care or unconscious patients, what is the biggest challenge for MRI safety?. They move too much during the scan. They usually wear too much clothing. They cannot provide their own medical history regarding potential metal implants. They are often allergic to headphones.

What is the recommended action if a magnetizable object is accidentally brought into the magnet?. Leave it there until the end of the day. Try to pull it out while the machine is still scanning. Remove it if possible and notify a service engineer to check for system damage. Cover it with a blanket so the next patient doesn't see it.