MRSO (MAGNETIC RESONANCE
SAFETY OFFICER) PREP EXAM
QUESTIONS AND ANSWERS GRADED A+
2026
MR Safety Officer responsibilities - ANS The role of MRSO is often carried out by the senior
Radiographer (in the USA this will generally be an MR technologist), but other suitably trained
individuals could also fill this role. Multiple MRSOs could be appointed, provided only one is in
charge at a given time. His/her responsibilities
include the following:
To be readily accessible and available (eg, to the operators of the MR system) at all times that
the MR facility is accessible.
Ensuring that proper policies and procedures for day-today MR safety are enforced.
Developing, documenting, and introducing, in conjunction with and under the authority of the
MRMD/MRRD, safe working procedures for the MR environment.
Ensuring that adequate written safety procedures, work instructions, emergency procedures,
and operating instructions are issued to all concerned after full consultation with the
MRMD/MRRD (and, if/as needed, the MRSE).
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,Ensuring that appropriate measures for minimizing risks to health that arise from the use of or
exposure to the MR equipment, as per the direction of the MRMD/MRRD, are implemented and
monitored.
Managing hazards posed by the MR equipment, and monitoring the measures taken to protect
against such hazards.
Ensuring that all Heads of Departments and senior medical staff members who are responsible
for personnel who will be involved with the MR system are informed of the formal procedures
for training and authorization.
Ensuring that medical, technical, nursing, and all other relevant staff groups (including ancillary
workers) who may be exposed to the MR environment are educated appropriately on a regular
basis as to the safety requirements
and updated as necessary.
Maintaining records of the personnel who have been educated appropriately as to the safety
requirements.
Consulting the MRMD/MRRD (and/or the MRSE)
when further adv
Magnetophosphenes - ANS A Sensory Symptom where the subject sees flashing lights caused
by an induced electrical current in the retina when exposed to a strong magnetic field.
Bo - ANS Static magnetic field direction
dBo/Dx - ANS Gradient magnetic field - Change in Magnetic Field / change in distance
American Board of Magnetic Resonance Safety ABMRS provides MR Safety Credentialing for: -
ANS MR Medical Director (MRMD)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
The MRMD certification is designed for: - ANS physicians, such as radiologists, who have
responsibility for the safe administration of MR exams.
The MRSO certification is designed for: - ANS those with a supervisory MRI safety role at the
point of care. While not exclusive to technologists, this role is most frequently be filled by an
MR technologist.
The MRSE certification is designed for: - ANS those in an expert, technical consulting role
who may help determine the safety of complex conditions. While not exclusive to MR medical
physicists, this role is most frequently filled by a
medical physicist.
The following types of injury can and have occurred during the MRI scanning process: (8) -
ANS 1. "Missile effect" or "projectile" injury in which ferromagnetic objects (those having
magnetic properties) such as ink pens,
wheelchairs, and oxygen canisters are pulled into the MRI scanner at rapid velocity.
2. Injury related to dislodged ferromagnetic implants such as aneurysm clips, pins in joints, and
drug infusion devices.
3. Burns from objects that may heat during the MRI process, such as wires (including lead wires
for both implants and
external devices) and surgical staples, or from the patient's body touching the inside walls (the
bore) of the MRI scanner
during the scan. (2)
4. Injury or complication related to equipment or device malfunction or failure caused by the
magnetic field. For example, battery-powered devices (laryngoscopes, microinfusion pumps,
monitors, etc.) can suddenly fail to operate; some
programmable infusion pumps may perform erratically; (3) and pacemakers and implantable
defibrillators may not behave as programmed.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
SAFETY OFFICER) PREP EXAM
QUESTIONS AND ANSWERS GRADED A+
2026
MR Safety Officer responsibilities - ANS The role of MRSO is often carried out by the senior
Radiographer (in the USA this will generally be an MR technologist), but other suitably trained
individuals could also fill this role. Multiple MRSOs could be appointed, provided only one is in
charge at a given time. His/her responsibilities
include the following:
To be readily accessible and available (eg, to the operators of the MR system) at all times that
the MR facility is accessible.
Ensuring that proper policies and procedures for day-today MR safety are enforced.
Developing, documenting, and introducing, in conjunction with and under the authority of the
MRMD/MRRD, safe working procedures for the MR environment.
Ensuring that adequate written safety procedures, work instructions, emergency procedures,
and operating instructions are issued to all concerned after full consultation with the
MRMD/MRRD (and, if/as needed, the MRSE).
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,Ensuring that appropriate measures for minimizing risks to health that arise from the use of or
exposure to the MR equipment, as per the direction of the MRMD/MRRD, are implemented and
monitored.
Managing hazards posed by the MR equipment, and monitoring the measures taken to protect
against such hazards.
Ensuring that all Heads of Departments and senior medical staff members who are responsible
for personnel who will be involved with the MR system are informed of the formal procedures
for training and authorization.
Ensuring that medical, technical, nursing, and all other relevant staff groups (including ancillary
workers) who may be exposed to the MR environment are educated appropriately on a regular
basis as to the safety requirements
and updated as necessary.
Maintaining records of the personnel who have been educated appropriately as to the safety
requirements.
Consulting the MRMD/MRRD (and/or the MRSE)
when further adv
Magnetophosphenes - ANS A Sensory Symptom where the subject sees flashing lights caused
by an induced electrical current in the retina when exposed to a strong magnetic field.
Bo - ANS Static magnetic field direction
dBo/Dx - ANS Gradient magnetic field - Change in Magnetic Field / change in distance
American Board of Magnetic Resonance Safety ABMRS provides MR Safety Credentialing for: -
ANS MR Medical Director (MRMD)
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
The MRMD certification is designed for: - ANS physicians, such as radiologists, who have
responsibility for the safe administration of MR exams.
The MRSO certification is designed for: - ANS those with a supervisory MRI safety role at the
point of care. While not exclusive to technologists, this role is most frequently be filled by an
MR technologist.
The MRSE certification is designed for: - ANS those in an expert, technical consulting role
who may help determine the safety of complex conditions. While not exclusive to MR medical
physicists, this role is most frequently filled by a
medical physicist.
The following types of injury can and have occurred during the MRI scanning process: (8) -
ANS 1. "Missile effect" or "projectile" injury in which ferromagnetic objects (those having
magnetic properties) such as ink pens,
wheelchairs, and oxygen canisters are pulled into the MRI scanner at rapid velocity.
2. Injury related to dislodged ferromagnetic implants such as aneurysm clips, pins in joints, and
drug infusion devices.
3. Burns from objects that may heat during the MRI process, such as wires (including lead wires
for both implants and
external devices) and surgical staples, or from the patient's body touching the inside walls (the
bore) of the MRI scanner
during the scan. (2)
4. Injury or complication related to equipment or device malfunction or failure caused by the
magnetic field. For example, battery-powered devices (laryngoscopes, microinfusion pumps,
monitors, etc.) can suddenly fail to operate; some
programmable infusion pumps may perform erratically; (3) and pacemakers and implantable
defibrillators may not behave as programmed.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
