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MRSO EXAM 1 WITH QUESTIONS AND 100% VERIFIED ANSWERS
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2024-2025 MRSO EXAM 1 WITH QUESTIONSAND 100% VERIFIED ANSWERS
The control room is located where?
a. Zone I
b. Zone II
c. Zone III
d. Zone IV - Answer C. Zone III
Which of the following describes a nonferrous object being rejected by a static
magnetic field?
a. Fourier transformation
b. Lenz's Force
c. Ohm’s law
d. Larmor equation - ANSWER B. Lenz's Force
Which of the following recommendations does the ACR Guidance paper on MR
Safety 2013 provide for proper patient scanning?
I. Metal Detector
II. Ferromagnetic detecting system.
III. Written screening sheet
IV. Patient's robe
a. I, III, IV.
,b. I, II, III and IV
c. II, III, IV.
d. III - ANSWER C. II, III, IV.
What is the FDA's SAR limit for the entire body in first-level controlled operating
mode?
a. 8 W/kg for 15 minutes.
b. 4 W/kg for 15 minutes.
c. 3 W/kg for ten minutes.
d. 7 W/kg for 20 minutes - ANSWER B. 4 W/kg for 15 minutes.
What kind of magnetism does Gadolinium have?
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Superparamagnetic - Answer b. Paramagnetic
Which of the following is true for Zone IV? Select all that apply.
a. This region should be supervised by a level two MR personnel.
b. Should be marked with signage.
c. Contains metal detectors for implant identification.
d. No dangerous implants may cross the 5-gauss unless the implant is investigated
and examined for risk (ANSWER a, b, d).
, Where will peripheral nerve stimulation be strongest?
a. Moving out from the isocenter in the gantry
b. At the table's advanced level
c. At the isocenter
d. ANSWER A: Outside the gantry, near the 5 Gauss line. Moving away from the
isocenter in the gantry.
A patient is quickly moved through the MRI scanner and receives the feeling of
flashing lights in their visual field. What are they experiencing?
a. Nystagmus
b. Heating
c. Magnetophosphenes
d. Magnetohydrodynamic effect - Answer: c. Magnetophosphenes
What is the name given to the static magnetic field's vector direction?
a. Inverse field.
b. Equilibrium
c. B0
d. B1 - ANSWER C. B0
What do you call an object that produces a weakly repulsive force when exposed to
a strong magnetic field?
a. Superparamagnetic
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