MRSO UPDATED EXAMS SCRIPT ALL QUESTIONS
AND ANSWERS SURE A+
✔✔Magnetophosphenes - ✔✔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 - ✔✔Static magnetic field direction
✔✔dBo/Dx - ✔✔Gradient magnetic field - Change in Magnetic Field / change in
distance
✔✔American Board of Magnetic Resonance Safety ABMRS provides MR Safety
Credentialing for: - ✔✔MR Medical Director (MRMD)
MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
✔✔The MRMD certification is designed for: - ✔✔physicians, such as radiologists, who
have responsibility for the safe administration of MR exams.
✔✔The MRSO certification is designed for: - ✔✔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: - ✔✔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) - ✔✔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.
5. Injury or complication due to failure to attend to patient support systems during the
MRI. This is especially true for patient
sedation or anesthesia in MRI arenas. For example, oxygen canisters or infusion pumps
run out and staff must either leave
the MRI area to retrieve a replacement or move the patient to an area where a
replacement can be found.
6. Acoustic injury from the loud knocking noise that the MRI scanner makes.
7. Adverse events related to the administration of MRI contrast agents.
8. Adverse events related to cryogen handling, storage, or inadvertent release in
superconducting MR imaging system sites.
✔✔The most common patient injuries in the MRI suite - ✔✔Burns
✔✔The most common objects to undergo significant heating - ✔✔Wires and leads.
✔✔Objects associated with burns are: - ✔✔pulse oximeter sensors and cables,
cardiorespiratory monitor cables, safety pins, metal clamps, drug delivery patches
(which may contain metallic foil), and tattoos (which may contain iron oxide pigment).
✔✔The American College of Radiology recommends that ________ and ____________
should be considered a relative contraindication for MRI - ✔✔implanted cardiac
pacemakers
implantable cardioverter/defibrillators
AND ANSWERS SURE A+
✔✔Magnetophosphenes - ✔✔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 - ✔✔Static magnetic field direction
✔✔dBo/Dx - ✔✔Gradient magnetic field - Change in Magnetic Field / change in
distance
✔✔American Board of Magnetic Resonance Safety ABMRS provides MR Safety
Credentialing for: - ✔✔MR Medical Director (MRMD)
MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
✔✔The MRMD certification is designed for: - ✔✔physicians, such as radiologists, who
have responsibility for the safe administration of MR exams.
✔✔The MRSO certification is designed for: - ✔✔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: - ✔✔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) - ✔✔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.
5. Injury or complication due to failure to attend to patient support systems during the
MRI. This is especially true for patient
sedation or anesthesia in MRI arenas. For example, oxygen canisters or infusion pumps
run out and staff must either leave
the MRI area to retrieve a replacement or move the patient to an area where a
replacement can be found.
6. Acoustic injury from the loud knocking noise that the MRI scanner makes.
7. Adverse events related to the administration of MRI contrast agents.
8. Adverse events related to cryogen handling, storage, or inadvertent release in
superconducting MR imaging system sites.
✔✔The most common patient injuries in the MRI suite - ✔✔Burns
✔✔The most common objects to undergo significant heating - ✔✔Wires and leads.
✔✔Objects associated with burns are: - ✔✔pulse oximeter sensors and cables,
cardiorespiratory monitor cables, safety pins, metal clamps, drug delivery patches
(which may contain metallic foil), and tattoos (which may contain iron oxide pigment).
✔✔The American College of Radiology recommends that ________ and ____________
should be considered a relative contraindication for MRI - ✔✔implanted cardiac
pacemakers
implantable cardioverter/defibrillators
