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Exam (elaborations)

MRSO Questions & Questions & 100% Correct Answers

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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 onl...

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  • September 12, 2024
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  • 2024/2025
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1 | P a g e | © copyright 2024/2025 | Grade A+




MRSO Questions & Questions & 100%
Correct 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?




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+



✓ ~~> 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




Master01 | September, 2024/2025 | Latest update

, 3 | P a g e | © copyright 2024/2025 | Grade A+



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




Master01 | September, 2024/2025 | Latest update

, 4 | P a g e | © copyright 2024/2025 | Grade A+



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?

✓ ~~> Noise, peripheral nerve stimulation




The T wave in the cardiac cycle represents what?

✓ ~~> Heart repolarization




How would gadolinium appear on a T1 weighted image?

✓ ~~> Bright




Master01 | September, 2024/2025 | Latest update

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