MRSO Questions & Correct Revised Answers Questions And Answers
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Course
MRSO
Institution
MRSO
It is important to describe the effects of translational and rotational force on
magnets with different vectors. A ____ vector will produce a longer gradient of
spatial magnetic fields along the longitudinal vector. A ____ MR unit, however,
will produce a shorter gradient of the spatial magne...
MRSO Questions & Correct
Revised Answers Questions
And Answers
In which ways an a patient self regulate their temperature when they overheat?
✓~ Evaporation, Radiation
Which of the following statements are true when discussing MR safety
Larger patients will heat up most
Smaller patients heat up most
Larger patients are ferromagnetic
Induction only occurs in smaller patients
✓~ Larger patients will heat up the most
Which of the following personnel can enter zone 3 and 4 but can't escort and
patient into zone 4
,✓~ MR personnel level 1
Which of the following describes the total dose of energy that a tissue receives
during an entire exam?
✓~ Specific energy dose
How many gauss are in 1 Tesla?
✓~ 10,000
Where is cryogen primarily located?
✓~ In the MR unit
According to the ACR Manual on MRI safety 2020, what zone is the quench pipe
located OUTSIDE a facility?
✓~ Zone 3
What type of MR unit uses a coil of wire with a current running through it and a
cryogenic to help produce a strong magnetic field?
,✓~ Superconducting magnet
A patient begins to sneeze uncontrollably immediately after an injection of
gadolinium contrast? This could be considered what?
✓~ Allergic reaction
According to the ACR Manual on MR safety 2020, in what zone is the MR unit
found
✓~ Zone 4
Which of the following is true of non-MR personnel according to the ACR
Manual on MR safety 2020?
✓~ They must pass an MR safety screening process before entering zone 3
Which of the following will determine the amount of heating that a patient will
receive?
✓~ Pulse sequence used, patients overall surface area, patient mass
After approximately _____ the magnetic field reaches zero
, ✓~ 3-5 minutes
How much more heating does a 360 degree RF pulse have than a 180 degree RF
pulse?
✓~ 4 times more
A tester magnet should be how strong according to the ACR Manual on MR
safety 2020?
✓~ Equal or greater than 1000 gauss
What is the risk of a non-ferrous pain pump?
✓~ Lenz's force
Which of the following answers best describes an electrical current when
exposed to electrically conductive material?
✓~ Faraday's law of induction
The gradient coils are responsible for which of the following?
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