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MRSO REVISED EXAM QUESTIONS WITH VERIFIED ANSWERS (2025)
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MRSO REVISED EXAM QUESTIONS WITHVERIFIED ANSWERS (2025)
In what ways can a patient self-regulate their temperature when they overheat? -
ANSWER Evaporation & Radiation
Which of the following assertions are correct while addressing MR safety?
Larger patients heat up the most.
Smaller patients heat up the most.
Larger patients are ferromagnetic.
ANSWER: Induction only happens in smaller patients. Larger patients heat the
most.
Which of the following personnel can enter zones 3 and 4 but cannot accompany a
patient to zone 4? - ANSWER: MR staff level 1.
Which of the following describes the overall amount of energy that a tissue
receives throughout an exam? - ANSWER Specific Energy Dosage
How many Gauss are in one Tesla? - ANSWER 10,000
Where is cryogen primarily found? - ANSWER In the MRI unit
According to the ACR Manual on MRI Safety 2020, where is the quench pipe
positioned outside a facility? - Answer Zone 3
What sort of magnetic resonance (MR) equipment employs a wire coil with a
current running through it and a cryogenic to generate a powerful magnetic field? -
ANSWER Superconducting magnets
,A patient sneezes uncontrollably shortly after receiving a gadolinium contrast
injection. This may be regarded as what? - ANSWER Allergic response.
According to the ACR Manual on MR Safety 2020, where is the MR unit found?
ANSWER: Zone 4.
Which of the following is true for non-MR staff, according to the ACR Manual on
MR Safety 2020? - ANSWER They must complete an MR safety screening process
before entering zone 3.
Which of the following determines how much heating a patient receives? -
ANSWER Pulse sequence used, patients' overall surface area, and patient mass
After around _____, the magnetic field becomes zero. ANSWER: 3-5 minutes
How much more heat does a 360-degree RF pulse produce than a 180-degree RF
pulse? - Answer four times more.
How strong should a tester magnet be, according to the ACR Manual on MR Safety
2020? - ANSWER Equal or more than 1000 gauss.
What are the risks of using a non-ferrous pain pump? - Answer Lenz's force.
Which of the following statements accurately characterizes an electrical current
when exposed to an electrically conductive material? - ANSWER Faraday's Law of
Induction
Which of the following are the gradient coils' responsibilities? - ANSWER Noise,
peripheral nerve stimulation.
, What do the T waves in the cardiac cycle represent? - ANSWER Heart
Repolarization
How does gadolinium show on a T1-weighted image? - Answer: Bright
What type of unpleasant reaction does emesis following a contrata media reaction
represent? - ANSWER A non-allergic response to contrast media.
When a patient receives an MRI and begins to perspire, how does the body regulate
the increasing temperature? - ANSWER Evaporative cooling.
Which of the following is NOT recommended in the ACR Manual on MRI Safety
2020? - ANSWER Metal Detector
When electrical fields are generated in implants, the process called ___ heating can
occur.
Which of the following can help our patient lower the risk of Lenz's force with
implanted devices? - ANSWER Move the patient cautiously into the MR unit.
According to the ACR Manual on MRI Safety 2020 - ANSWER Zone 2, most
hospital facilities within this zone require patients to change into gowns.
Cryogen is intended to escape from the MR room via what? - ANSWER Quench
the vent.
According to the ACR Manual on MR Safety 2020, a location that is outside of any
MR department and is accessible to the general public is named Zone 1.
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