MRSO Exam 1 (Latest 2026/2027 Update) With Questions and
Verified Answers| | 100% Correct | Grade A+
•
The control room is found where?
a. Zone I
b. Zone II
c. Zone III
d. Zone IV
- ✔✔C. Zone III
•
Which of the following describe when a non-ferrous object is repulsed by static magnetic field?
•
a. Fourier transformation
b. Lenz's force
c. Ohm's law
d. Larmor equation
- ✔✔b. Lenz's force
•
Which of the following are recommended by the ACR Guidance document in MR safety 2013 in proper
scanning of a patient?
I. Metal detector
II. Ferromagnetic detection system
III. Written screening sheet
IV. Patient gown
•
a. I, III, IV
b. I, II, III, IV
c. II, III, IV
d. III
- ✔✔c. II, III, IV
•
What is the FDA SAR limit for the whole body in first level controlled operating mode?
a. 8 W/kg for 15 mins
b. 4 W/kg for 15 mins
c. 3 W/kg for 10 mins
d. 7 W/kg for 20 mins
- ✔✔b. 4 W/kg for 15 mins
, •
Gadolinium contains what kind of magnetism?
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
- ✔✔b. Paramagnetic
•
Which of the following is true of Zone IV? Select all that apply.
a. This area should be monitored by a level 2 MR personnel
b. Should be noted with signage
c. Contain metal detectors for implant identification
d. No unsafe implants may cross the 5-gauss unless the implant is researched and analyzed for risk
- ✔✔a, b, d
•
Where will peripheral nerve stimulation be the strongest?
•
a. Further away from isocenter in the gantry
b. At the level of the table when it is advanced
c. At isocenter
d. Outside the gantry near the 5 gauss line
- ✔✔a. Further away from the isocenter in the gantry
•
A patient is advanced in the MRI scanner very quickly and experiences a sensation of flashing lights in
their visual field. What are they experiencing?
a. Nystagmus
b. Heating
c. Magnetophosphenes
d. Magnetohydrodynamic effect
- ✔✔c. Magnetophosphenes
•
What is the name for the direction of the vector of the static magnetic field?
a. Inverse field
b. Equilibrium
c. B0
d. B1
- ✔✔c. B0
•
An object that produces a weakly repulsive force in the presence of a strong magnetic field is called
what? a. Superparamagnetic
b. Ferromagnetic
c. Diamagnetic
d. Paramagnetic
Verified Answers| | 100% Correct | Grade A+
•
The control room is found where?
a. Zone I
b. Zone II
c. Zone III
d. Zone IV
- ✔✔C. Zone III
•
Which of the following describe when a non-ferrous object is repulsed by static magnetic field?
•
a. Fourier transformation
b. Lenz's force
c. Ohm's law
d. Larmor equation
- ✔✔b. Lenz's force
•
Which of the following are recommended by the ACR Guidance document in MR safety 2013 in proper
scanning of a patient?
I. Metal detector
II. Ferromagnetic detection system
III. Written screening sheet
IV. Patient gown
•
a. I, III, IV
b. I, II, III, IV
c. II, III, IV
d. III
- ✔✔c. II, III, IV
•
What is the FDA SAR limit for the whole body in first level controlled operating mode?
a. 8 W/kg for 15 mins
b. 4 W/kg for 15 mins
c. 3 W/kg for 10 mins
d. 7 W/kg for 20 mins
- ✔✔b. 4 W/kg for 15 mins
, •
Gadolinium contains what kind of magnetism?
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
- ✔✔b. Paramagnetic
•
Which of the following is true of Zone IV? Select all that apply.
a. This area should be monitored by a level 2 MR personnel
b. Should be noted with signage
c. Contain metal detectors for implant identification
d. No unsafe implants may cross the 5-gauss unless the implant is researched and analyzed for risk
- ✔✔a, b, d
•
Where will peripheral nerve stimulation be the strongest?
•
a. Further away from isocenter in the gantry
b. At the level of the table when it is advanced
c. At isocenter
d. Outside the gantry near the 5 gauss line
- ✔✔a. Further away from the isocenter in the gantry
•
A patient is advanced in the MRI scanner very quickly and experiences a sensation of flashing lights in
their visual field. What are they experiencing?
a. Nystagmus
b. Heating
c. Magnetophosphenes
d. Magnetohydrodynamic effect
- ✔✔c. Magnetophosphenes
•
What is the name for the direction of the vector of the static magnetic field?
a. Inverse field
b. Equilibrium
c. B0
d. B1
- ✔✔c. B0
•
An object that produces a weakly repulsive force in the presence of a strong magnetic field is called
what? a. Superparamagnetic
b. Ferromagnetic
c. Diamagnetic
d. Paramagnetic
