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MRSO Questions & Correct Revised Answers Questions And Answers
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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...

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  • August 8, 2024
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  • 2024/2025
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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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