MRSO Exam Question and Answer 2026 |
Complete Study Guide with Practice
Questions | A+ Verified
Which of the following can be potential safety concerns to a patient in the static
magnetic field?
A. Electrically conductive materials
B. Ferrous objects
C. Magnetic objects
D. All of the choices. -✓✓D. All of the choices
An object that retains its magnetic field when exiting the static magnetic field is call
what?
A. Paramagnetic
B. Diamagnetic
C. Ferromagnetic
D. Superparamagnetic -✓✓C. Ferromagnetic
What direction is the vector of a permanent MR unit?
A. Horizontal
B. Vertical
C. Diagonal
D. Variable -✓✓B. Vertical
What separates a superconducting MR unit from a resistive MR unit?
A. Cryogen
B. Coils of wires
C. Permanent magnets
D. none of the choices -✓✓A. Cryogen
The increasing strength of magnetism as we move closer to the MR unit is called what?
A. Ferromagnetism
B. Spatial magnetic gradient field
C. Vector
D. B0 -✓✓B. Spatial magnetic gradient field
What is responsible for attracting ferrous objects into the MR unit?
A. Spatial magnetic gradient fields
B. Strong uniform magnetic fields
C. Gradient coils
D. Radiofrequency system -✓✓A. Spatial magnetic gradient fields
If we placed a small ferrous object at isocenter, what would we expect to happen?
,A. The object would experience no attraction.
B. The object would immediately be attracted to the bore.
C. The object would levitate.
D. The object would be repulsed by the unit. -✓✓A. The object would experience no
attraction.
Rotational force will be the strongest at what location?
A. Isocenter
B. Outside the MR room
C. At the gantry opening
D. At the 5 gauss line -✓✓A. Isocenter
Passive shielding uses which of the following?
A. Coils of wires with electrical current running through them.
B. Magnetically conductive materials
C. Plastic
D. Wood -✓✓B. Magnetically conductive materials
How can we reduce risks associated with Lenz's force?
A. No risks are associated with Lenz's force.
B. Use a cold compress to reduce heating.
C. Move as quickly as possible to get the patient out of the scanner quickly.
D. Advance patient into the scanner slowly. -✓✓D. Advance Patient into the scanner
slowly.
An implant has a deflection of 23 degrees. In terms of static magnetic fields, is it safe for
this patient to have an MRI?
A. Yes
B. Must call the manufacture to determine conditions.
C. No
D. Not enough information. -✓✓A. Yes
Which of the following stainless steels are non-ferrous?
A. Ferritic
B. Martensitic
C. Austenitic
D. All are ferrous -✓✓C. Austenitic
It is not safe for a patient to cross over the 5 gauss line. How many millitesla is this?
A. 0.5mT
B. 5mT
C. 50mT
D. 0.005mT -✓✓A. 0.5mT
, A patient is placed in a magnetic field that changes over a distance from the MR unit.
What do we need in order to meet the manufacture limits if a patient with an implant will
be safe from the threats associated with the static magnetic field prior to their MRI.
A. Spatial gradient map.
B. Compression
C. The MRSO sole approval.
D. All of the choices. -✓✓A. Spatial gradient map
The spatial gradient of 1.5 T MR unit, not the maximum spatial gradient has a lower
spatial gradient than a 3.0 T MR unit.
A. True
B. False -✓✓B. False
Which of the following are documented biological effects associated with the static
magnetic field?
A. Magnetophosphenes
B. Magnetohydrodynamic Effect
C. Headaches
D. Difficulty breathing -✓✓A. Magnetophosphenes, B. Magnetohydrodynamic Effect
and C. Headaches.
What is the purpose of the time-varying gradient magnetic field?
A. To produce resonance in our hydrogen nuclei
B. To change the precessional speeds of hydrogen
C. To produce net magnetism
D. To form an image. -✓✓B. To change the precessional speeds of hydrogen.
The effect of the time-varying gradient is greatest where?
A. Periphery of the patient.
B. At isocenter
C. At the 5-gauss line.
D. Outside the MR room. -✓✓A. Periphery of the patient.
The X coil will produce what plane of image?
A. Coronal images
B. Axial images
C. Sagittal images
D. Oblique images -✓✓C. Sagittal images
Slew rate is measured in what?
A. T/m/s
B. mT
C. Seconds
D. Watts/kg -✓✓A. T/m/s
Complete Study Guide with Practice
Questions | A+ Verified
Which of the following can be potential safety concerns to a patient in the static
magnetic field?
A. Electrically conductive materials
B. Ferrous objects
C. Magnetic objects
D. All of the choices. -✓✓D. All of the choices
An object that retains its magnetic field when exiting the static magnetic field is call
what?
A. Paramagnetic
B. Diamagnetic
C. Ferromagnetic
D. Superparamagnetic -✓✓C. Ferromagnetic
What direction is the vector of a permanent MR unit?
A. Horizontal
B. Vertical
C. Diagonal
D. Variable -✓✓B. Vertical
What separates a superconducting MR unit from a resistive MR unit?
A. Cryogen
B. Coils of wires
C. Permanent magnets
D. none of the choices -✓✓A. Cryogen
The increasing strength of magnetism as we move closer to the MR unit is called what?
A. Ferromagnetism
B. Spatial magnetic gradient field
C. Vector
D. B0 -✓✓B. Spatial magnetic gradient field
What is responsible for attracting ferrous objects into the MR unit?
A. Spatial magnetic gradient fields
B. Strong uniform magnetic fields
C. Gradient coils
D. Radiofrequency system -✓✓A. Spatial magnetic gradient fields
If we placed a small ferrous object at isocenter, what would we expect to happen?
,A. The object would experience no attraction.
B. The object would immediately be attracted to the bore.
C. The object would levitate.
D. The object would be repulsed by the unit. -✓✓A. The object would experience no
attraction.
Rotational force will be the strongest at what location?
A. Isocenter
B. Outside the MR room
C. At the gantry opening
D. At the 5 gauss line -✓✓A. Isocenter
Passive shielding uses which of the following?
A. Coils of wires with electrical current running through them.
B. Magnetically conductive materials
C. Plastic
D. Wood -✓✓B. Magnetically conductive materials
How can we reduce risks associated with Lenz's force?
A. No risks are associated with Lenz's force.
B. Use a cold compress to reduce heating.
C. Move as quickly as possible to get the patient out of the scanner quickly.
D. Advance patient into the scanner slowly. -✓✓D. Advance Patient into the scanner
slowly.
An implant has a deflection of 23 degrees. In terms of static magnetic fields, is it safe for
this patient to have an MRI?
A. Yes
B. Must call the manufacture to determine conditions.
C. No
D. Not enough information. -✓✓A. Yes
Which of the following stainless steels are non-ferrous?
A. Ferritic
B. Martensitic
C. Austenitic
D. All are ferrous -✓✓C. Austenitic
It is not safe for a patient to cross over the 5 gauss line. How many millitesla is this?
A. 0.5mT
B. 5mT
C. 50mT
D. 0.005mT -✓✓A. 0.5mT
, A patient is placed in a magnetic field that changes over a distance from the MR unit.
What do we need in order to meet the manufacture limits if a patient with an implant will
be safe from the threats associated with the static magnetic field prior to their MRI.
A. Spatial gradient map.
B. Compression
C. The MRSO sole approval.
D. All of the choices. -✓✓A. Spatial gradient map
The spatial gradient of 1.5 T MR unit, not the maximum spatial gradient has a lower
spatial gradient than a 3.0 T MR unit.
A. True
B. False -✓✓B. False
Which of the following are documented biological effects associated with the static
magnetic field?
A. Magnetophosphenes
B. Magnetohydrodynamic Effect
C. Headaches
D. Difficulty breathing -✓✓A. Magnetophosphenes, B. Magnetohydrodynamic Effect
and C. Headaches.
What is the purpose of the time-varying gradient magnetic field?
A. To produce resonance in our hydrogen nuclei
B. To change the precessional speeds of hydrogen
C. To produce net magnetism
D. To form an image. -✓✓B. To change the precessional speeds of hydrogen.
The effect of the time-varying gradient is greatest where?
A. Periphery of the patient.
B. At isocenter
C. At the 5-gauss line.
D. Outside the MR room. -✓✓A. Periphery of the patient.
The X coil will produce what plane of image?
A. Coronal images
B. Axial images
C. Sagittal images
D. Oblique images -✓✓C. Sagittal images
Slew rate is measured in what?
A. T/m/s
B. mT
C. Seconds
D. Watts/kg -✓✓A. T/m/s
