MRI Safety and Risks Quiz - Missed Questions

Which system is used to screen personnel and equipment in MRI environments?

• Emergency quench training

• Zone-based access control

• Ferromagnetic detection systems

• Bore clearance procedures

What is the recommended action for managing static fields in MRI?

• Coil padding

• Limit slew rate

• Slow table movement

• Pre-scan screening

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What safety measure is recommended to reduce dB/dt exposure during MRI?

• Increase patient table speed

• Use of ear protection

• Slow patient table movements

• Decrease room temperature

What is a potential biological effect of RF (Radiofrequency) fields due to dielectric absorption?

• Muscle twitching

• Thermal injury

• Hearing loss

• Visual light flashes

Which of the following is a key risk associated with RF fields in MRI?

• Peripheral Nerve Stimulation

• Acoustic noise

• Tissue heating (SAR)

• Visual distortion

What is a possible long-term biological effect of MRI according to current research?

• Decreased cellular stress responses

• Increased blood-brain barrier permeability

• Enhanced fertility and reproduction

• Improved immune function

What is a key risk when RF and gradient fields interact with the static magnetic field?

• Fire risk from conductive materials.

• Device malfunction or heating.

• Cryogen hazards.

• Proper cable routing.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is a recommended safety measure for patient communication during MRI procedures?

• Warn about possible muscle twitching from PNS.

• Ensure devices are tested for TVMF compatibility.

• Use only certified MRI-safe devices.

• Protect from high acoustic noise.

What is a cause of acoustic injury in MRI environments?

• RF heating

• Rapid gradient switching

• Gradient noise

• Ferromagnetic objects

What is required to ensure no unauthorized personnel are in Zone IV?

• Visible signage

• Controlled access

• Regular inspections

• Team training