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MRSO MOCK EXAM
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Exam study book Review Questions for MRI of Carolyn Kaut Roth, William H. Faulkner, Jr. - ISBN: 9781444333909 (MRSO MOCK EXAM)
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MRSO MOCK EXAM NEWEST 2024 ACTUAL EXAMCOMPLETE 100 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A
What type of gadolinium contrast has been shown to cause falsely low serum
calcium laboratory values?
There is no correlation
Macrocyclic
Linear ionic
Linear non-ionic - ANSWER: Linear non-ionic
What is the limit of the static magnetic field for patients <1 month old?
2T
8T
4T
3T - ANSWER: 4T
Which of the following implants hold the most thermal risk to a patient?
Bone screw
Pacemaker lead attached to a generator
Abandon pacemaker lead
Gallbladder clip - ANSWER: Abandon pacemaker lead
PNS occurs in our patient due to which of the following processes?
Lenz Law
Faraday's law
Lorentz forces
Ohm's law
QUESTION ERROR/CONCERN - ANSWER: Faraday's law
5,000G is equal to _____ T.
2T
0.25T
1T
0.5T - ANSWER: 0.5T
Which of the following is true of tattoos? Select all that apply.
Skin can be twisted by the static magnetic field
The strong static field can erase fresh tattoos
Can cause a burn
,Can rip out tattoos - ANSWER: Can cause a burn
What needs to be in site when complying with the line of sight rule defined in the
ACR Manual on MRI Safety? Select all that apply.
Door to Zone 3
Console
Patient
Door to Zone 4 - ANSWER: Console
Patient
Door to Zone 4
Anthropogenic effects of gadolinium would most likely be seen where?
Rural areas
Towns with many rivers and lakes
Cities with large healthcare facilities - ANSWER: Cities with large healthcare facilities
Which of the following are correct when using a metal detector to screening a
patient for MR threats?
They can not determine what is ferrous or not.
They will only detect ferrous objects.
They are one of the most effective means of identifying risk in MR.
They are a must in ensuring the safety of our patients and are recommended by the
ACR Manual on MRI Safety - ANSWER: They can not determine what is ferrous or
not.
Which of the following issues could occur with an insulin/pain pump? Select all that
apply.
Damage to the pump
Infusing a bolus of medication
Heating in leads - ANSWER: Damage to the pump
Infusing a bolus of medication
What is the FDA limit of the static magnetic field for patients >1 month old?
10T
2T
4T
8T - ANSWER: 8T
What makes the time-varying gradient field (TVGF) different than the time-varying
RF field (TVRF)?
The TVGF will produce resonance in the patient.
, The TVGF uses a faster changing magnetic field than the TVRF.
The TVGF uses a slower changing magnetic field than the TVRF.
The TVGF will induce more heating in the patient than the TVRF. - ANSWER: The
TVGF uses a slower changing magnetic field than the TVRF.
A proximity burn occurs when?
A patient's skin is in contact with the gantry.
When an ECG wire forms a loop.
When a patient's skin forms a conductive loop.
When a electrical conductive material is placed on our patient. - ANSWER: A
patient's skin is in contact with the gantry.
According to the IEC, what is the limit for the static magnetic field for clinical MRI?
400 mT
200 mT
8T
4 T - ANSWER: 8 T
In order for the static magnetic field to be a true threat, an object could? Select all
that apply.
Contain steel or iron
Be electrically conductive
Contain 316L stainless steel
Enter the MR environment - ANSWER: Contain steel or iron
Enter the MR environment
Which of the following is true of the MR screening process according to the ACR
Manual on MRI Safety? Select all that apply.
A written MR screening process is acceptable by a level 1 MR personnel as long as a
level 2 MR personnel provides a verbal or interactive MR screening as well
A patient should be screened by at least one level 2 MR personnel verbally or
interactively
Level 1 and 2 MR personnel need to have a more comprehensive MR screening
process than used with patients
A patient should be MR screened twice - ANSWER: A written MR screening process is
acceptable by a level 1 MR personnel as long as a level 2 MR personnel provides a
verbal or interactive MR screening as well
A patient should be screened by at least one level 2 MR personnel verbally or
interactively
A patient should be MR screened twice
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