MRSO Exam 3 (Latest 2026/2027 Update) With Questions and
Verified Answers| | 100% Correct | Grade A+
•
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
- ✔✔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
- ✔✔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.
i. - ✔✔b. The massive volume of helium boiling off through the
ii. 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
c. Don't scan patient
d. Place an ice pack on patient's chest
- ✔✔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.
- ✔✔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
i. - ✔✔c. Screening process for non-MR personnel and
ii. 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
i. - ✔✔a. A level 1 or 2 personnel
ii. should be available to help a MR personnel in Zone IV in non-emergent situations
•
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
- ✔✔b. The noise heard in the MRI
•
The rapids turning on & off of gradient coils causes a torque against the gantry.
Verified Answers| | 100% Correct | Grade A+
•
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
- ✔✔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
- ✔✔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.
i. - ✔✔b. The massive volume of helium boiling off through the
ii. 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
c. Don't scan patient
d. Place an ice pack on patient's chest
- ✔✔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.
- ✔✔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
i. - ✔✔c. Screening process for non-MR personnel and
ii. 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
i. - ✔✔a. A level 1 or 2 personnel
ii. should be available to help a MR personnel in Zone IV in non-emergent situations
•
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
- ✔✔b. The noise heard in the MRI
•
The rapids turning on & off of gradient coils causes a torque against the gantry.
