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MRSO MOCK EXAM 1 QUESTIONS AND ANSWERS $9.00   Add to cart

Exam (elaborations)

MRSO MOCK EXAM 1 QUESTIONS AND ANSWERS

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MRSO MOCK EXAM 1 QUESTIONS AND ANSWERS

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  • September 24, 2024
  • 95
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MRSO
  • MRSO
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95 Multiple choice questions

Term 1 of 95
5,000G is equal to _____ T.

2T

0.25T

1T

0.5T

Term 2 of 95
Which of the following are true of 1.5 T MR units vs. 3.0 T? Select all that apply.


Ferrous objects show more attraction at 3.0 T vs 1.5 T


Implants that are safe at 3.0 T do not mean that they are safe at 1.5 T


Heating in the pacemaker leads not connected to a generator is higher at 3.0 T than 1.5 T


Small metallic passive objects are safe at 3.0 T and not at 1.5 T

It is hypothesized that gadolinium retention occurs due to it following pathways that
other metals do, such as iron and calcium.

Lenz's effect


Ferrous objects show more attraction at 3.0 T vs 1.5 T
Implants that are safe at 3.0 T do not mean that they are safe at 1.5 T


These implants may contain magnetic components that can be attracted to the MR unit.

,Term 3 of 95
What type of contrast is Dotarem?

Ionic, macrocylic


Non ionic, macrocylic

Ionic, non ionic


Linear, macrocylic

Term 4 of 95
A patient is complaining of discomfort from high SAR during a fast spin echo. What can be
done to make them more comfortable?

Decrease the TR

Decrease the echo train length


Increase the receiving bandwidth

Increase the flip angle

Term 5 of 95
Which of the following will influence translational force? Select all that apply.


Spatial gradient magnetic field
Strength of the magnetic field strength
Magnetic susceptibility
Mass of the object

Ferrous objects show more attraction at 3.0 T vs 1.5 T
Implants that are safe at 3.0 T do not mean that they are safe at 1.5 T

Physiologic reactions

Contains thin coiled copper wires

Spatial gradient magnetic field
Strength of the magnetic field strength
Magnetic susceptibility
Mass of the object

,Term 6 of 95
Which of the following are sensations that occur from the time-varying gradient field?

Twitching


Tingling

Pain

All of the choices

Term 7 of 95
Which of the following is true when scanning pregnant patients?

Stay in normal mode


All of the choices

Scanning at 1.5 T suggested

Communicate with patient

Term 8 of 95
Gadolinium contrast has been found in the body in what form? Select all that apply.


Free gadolinium is not bound to anything
Water soluble
Non-water soluble

High blood pressure

Deep brain stimulator


Can cause A burn

Water soluble
Non-water soluble

, Term 9 of 95
What is the half wavelength for a 1.5 T unit?

60 cm


25 cm

5 cm

12 cm

Term 10 of 95
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.

Term 11 of 95
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

Console
Patient
Door to Zone 4


Console Patient Door to Zone 3

Console Patient Door to Zone 96

Break The Window to Zone iv

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