MRSO EXAM 3 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
Which of the following are physiologic factors that occur from an anaphylactic reaction? Select all that
apply.
a. Elevated creatinine levels
b. Vasodilation
c. Bronchial smooth muscle contraction
d. Increased vascular permeability - (answer) b, c, d
A non-emergent quench can take approximately how long?
a. 1 minute
b. 20 seconds
c. 5-15 mins
d. 2- 4 mins - (answer) c. 5-15 mins
An emergent quench will take approximately 1 minute.
The roaring sound heard during a quench is caused by what?
a. The sound of the ignition of the coils of wire used to heat the cryogen
b. The massive volume of helium boiling off through the quench vent
c. If a loud noise is heard, something is going wrong and you should evacuate.
d. The sound of the system shutting down. - (answer) b. The massive volume of helium boiling off
through the quench vent
Which of the following will reduce the risk of patient burning in a pacing wire?
a. Place pacing wire outside RF field
b. Advance patient into scanner head first
,MRSO EXAM 3 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
c. Don't scan patient
d. Place an ice pack on patient's chest - (answer) a. Place pacing wire outside RF field
A patient has removed a vagus stimulator with the leads left in, and is having a MR knee performed with
the transmit-receive coil. In terms of patient heating, is it safe to scan?
a. No
b. Yes, only with heat sink
c. Yes
d. Yes, only if that patient is less than 200lb. - (answer) c. Yes
Heating can only occur in areas where RF energy is exposed to. If the implant is not exposed to RF
energy, heating will not occur.
Which of the following are NOT true?
a. Screening process for non-MR personnel and MR personnel should be the same
b. Unscreened patients should not enter Zone III
c. Screening process for non-MR personnel and MR personnel should be different.
d. Zone IV is the responsibility of Level 2 personnel - (answer) c. Screening process for non-MR
personnel and MR personnel should be different.
Which of the following is a true statement?
a. A level 1 or 2 personnel should be available to help a MR personnel in Zone IV in non-emergent
situations
b. All level 2 personnel are MR techs
c. A pregnant patient may not undergo an MR exam
d. A level 1 personnel may scan a patient to relieve a level 2 personnel - (answer) a. A level 1 or 2
personnel should be available to help a MR personnel in Zone IV in non-emergent situations
, MRSO EXAM 3 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
Lorenz's force can be used to describe what?
a. Translation force
b. The noise heard in the MRI
c. Peripheral nerve stimulation
d. Resonance heating - (answer) b. The noise heard in the MRI
The rapids turning on & off of gradient coils causes a torque against the gantry.
A contrast media with high relaxivity will do what when compared to contrast media with lower
relativity?
a. Produce more signal
b. Produce less signal
c. Improve resolution
d. Produce more image noise - (answer) a. Produce more signal
To reduce pressure in an MR scan room during a quench with a faulty vent, what can be done?
a. Drill a hole into the wall to Zone IV
b. Wait 20 minutes for pressure to dissipate
c. Open the door to Zone IV
d. Break the window to Zone IV - (answer) d. Break the window to Zone IV
Which of the following concerns can be caused by the time-varying gradient magnetic field?
a. Anaphylaxis
b. Diaphragm contractions
c. Difficulty swallowing
ANSWERS
Which of the following are physiologic factors that occur from an anaphylactic reaction? Select all that
apply.
a. Elevated creatinine levels
b. Vasodilation
c. Bronchial smooth muscle contraction
d. Increased vascular permeability - (answer) b, c, d
A non-emergent quench can take approximately how long?
a. 1 minute
b. 20 seconds
c. 5-15 mins
d. 2- 4 mins - (answer) c. 5-15 mins
An emergent quench will take approximately 1 minute.
The roaring sound heard during a quench is caused by what?
a. The sound of the ignition of the coils of wire used to heat the cryogen
b. The massive volume of helium boiling off through the quench vent
c. If a loud noise is heard, something is going wrong and you should evacuate.
d. The sound of the system shutting down. - (answer) b. The massive volume of helium boiling off
through the quench vent
Which of the following will reduce the risk of patient burning in a pacing wire?
a. Place pacing wire outside RF field
b. Advance patient into scanner head first
,MRSO EXAM 3 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
c. Don't scan patient
d. Place an ice pack on patient's chest - (answer) a. Place pacing wire outside RF field
A patient has removed a vagus stimulator with the leads left in, and is having a MR knee performed with
the transmit-receive coil. In terms of patient heating, is it safe to scan?
a. No
b. Yes, only with heat sink
c. Yes
d. Yes, only if that patient is less than 200lb. - (answer) c. Yes
Heating can only occur in areas where RF energy is exposed to. If the implant is not exposed to RF
energy, heating will not occur.
Which of the following are NOT true?
a. Screening process for non-MR personnel and MR personnel should be the same
b. Unscreened patients should not enter Zone III
c. Screening process for non-MR personnel and MR personnel should be different.
d. Zone IV is the responsibility of Level 2 personnel - (answer) c. Screening process for non-MR
personnel and MR personnel should be different.
Which of the following is a true statement?
a. A level 1 or 2 personnel should be available to help a MR personnel in Zone IV in non-emergent
situations
b. All level 2 personnel are MR techs
c. A pregnant patient may not undergo an MR exam
d. A level 1 personnel may scan a patient to relieve a level 2 personnel - (answer) a. A level 1 or 2
personnel should be available to help a MR personnel in Zone IV in non-emergent situations
, MRSO EXAM 3 NEWEST 2024 ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
Lorenz's force can be used to describe what?
a. Translation force
b. The noise heard in the MRI
c. Peripheral nerve stimulation
d. Resonance heating - (answer) b. The noise heard in the MRI
The rapids turning on & off of gradient coils causes a torque against the gantry.
A contrast media with high relaxivity will do what when compared to contrast media with lower
relativity?
a. Produce more signal
b. Produce less signal
c. Improve resolution
d. Produce more image noise - (answer) a. Produce more signal
To reduce pressure in an MR scan room during a quench with a faulty vent, what can be done?
a. Drill a hole into the wall to Zone IV
b. Wait 20 minutes for pressure to dissipate
c. Open the door to Zone IV
d. Break the window to Zone IV - (answer) d. Break the window to Zone IV
Which of the following concerns can be caused by the time-varying gradient magnetic field?
a. Anaphylaxis
b. Diaphragm contractions
c. Difficulty swallowing
