MRSO-4 Exam Questions With Correct Revised Answers
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Course
MRSO
Institution
MRSO
MRSO-4 Exam Questions With Correct
Revised Answers
The quench vent in the MR room should be inspected by who?
a. facility engineers
b. manufacturer engineers
c. MR tech
d. MRMD - answerb. manufacturer engineers
The quench vent outside the MR facility is inspected by who?
a. facility enginee...
MRSO-4 Exam Questions With Correct
Revised Answers
The quench vent in the MR room should be inspected by who?
a. facility engineers
b. manufacturer engineers
c. MR tech
d. MRMD - answer✔✔b. manufacturer engineers
The quench vent outside the MR facility is inspected by who?
a. facility engineers
b. manufacture engineer
c. MR tech
d. MRMD - answer✔✔a. facility engineers
If a cryogen comes in contact with skin, what will happen?
a. frostbite/necrosis
b. nothing, in its gas form
c. explode
d. combust - answer✔✔a. frostbite/necrosis
Why is asphyxia a risk associated with a quench malfunction?
a. air is displaced by expanding helium gas
b. helium is flammable so if ignighted, it can burn breathable air.
c. temperatures get so cold that the diaphram contracts
d. the changing magnetic field associated with a quench that induction in the diaphram to
contract. - answer✔✔a. air is displaced by expanding helium gas
What would we expect to see when a malfunctioned quench causes helium to leak into the MR
room? Select all that apply.
a. decrease in room temperature
b. increase in room temperature
c. decrease in magnetic field strength
d. increase in RF heating - answer✔✔a. decrease in room temperature
c. decrease in magnetic field strength
A designated MR personnel should be present during a quench if the MRSO cannot be.
a. True
b. False - answer✔✔a. True
A conservative approach to breast-feeding after a mother receives gadolinium contrast is:
a. to continue breast-feeding immediately after receiving an intravenous injection of gadolinium
contrast.
b. to wait 12-24 hrs to breast feed after an intravenous injection of gadolinium contrast.
c. to pump and dump breastmilk for 48 hrs after an intravenous injection of gadolinium.
d. to mix formula with breastmilk for 24 hrs after an intravenous injection of gad. - answer✔✔b.
to wait 12-24 hrs to breast feed after an intravenous injection of gadolinium contrast.
Gadolinium contrast media is excreted into breastmilk in an unstable non-water soluble form.
a. true
b. false - answer✔✔b. false
Approximately how much gadolinium is absorbed by an infant from a mother who has breastfed
them and has received a dose of gadolinium contrast?
a. >1%
b.<0.0004%
c. 0.04%
d. 20% - answer✔✔b.<0.0004%
Which of the following agents yields the best chance for transmetallation to occur?
a. linear non-ionic
b. linear ionic
d. macrocyclic ionic - answer✔✔a. linear non-ionic
Which of the following agents is the most stable?
a. linear non-ionic
b. linear ionic
c. macrocyclic
d. all are equally stable - answer✔✔c. macrocyclic
Which of the following was a sign to researchers that something was happening to renal
compromised patients who received gad prior to uncovering the link of gadolinium contrast and
NSF?
a. Elevated levels of zinc in the urine
b. nausea immediately after a bolus of gad
c. confusion and chronic headaches in patients 1 month after injection.
d. hyperintense areas in the brain were seen on T1 weighted images. - answer✔✔a. Elevated
levels of zinc in the urine
What is the best way to prevent NSF?
a. don't give gad to patients who are in renal failure.
b. perform dialysis on the patient prior to the gad injection.
c. hydrate patient prior to gad
d. NSF can't be prevented - answer✔✔a. don't give gad to patients who are in renal failure.
Gad retention is identified because of what?
a. zinc in a patient's urine
b. increase signal on a T1 weighted image pre-contrast.
c. plaques on a patient's skin
d. death - answer✔✔b. increase signal on a T1 weighted image pre-contrast.
What type of gad contrast has shown to cause falsely low serum calcium lab values?
a. linear non-ionic
b. linear ionic
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