And Answers 2027
Which of the following is a short term effect of gadolinium based contrast?
A. Gadolinium retention
B. NSF
C. Nausea
D. GAP - ANSWER -C. Nausea
What gradient coil will produce axial images?
A. X Gradient
B. Y Gradient
C. Z Gradient
D. All of the choices - ANSWER -C. Z Gradient
A headache after contrast injection is considered what?
A. None of the choices
B. Anaphylaxis
C. Allergic reaction
D. Non allergic reaction - ANSWER -D. Non allergic reaction
The invisible fields that flow from the north pole to south pole of a magnet are
called?
A. Voltages
B. Radiant fields
C. Electrical current
D. Magnetic flux lines - ANSWER -D. Magnetic Flux lines
The transmission of radiofrequency waves will cause what?
,A. Peripheral nerve stimulation
B. Patient heating
C. Magnetohydrodynamic effect
D. Vertigo - ANSWER -B. Patient heating
Unsafe electrical devices in patients should be restricted from which of the
following?
A. Entering Zone 2
B. Entering Zone 1
C. Crossing the 5-gauss line
D. Crossing the 10-gauss line - ANSWER -C. Crossing the 5-gauss line
Which of the following is used to measure patient heating?
A. Patient heating ratio
B. Specific energy resonance
C. Set absorption ratio
D. Specific absorption rate - ANSWER -D. Specific Absorption Rate
What type of MRI unit uses many bricks of magnets to produce a strong static
field?
A. All of choices
B. Resistive magnet
C. Permanent Magnet
D. Superconducting magnet - ANSWER -C. Permanent Magnet
Which of the following are units of measurements for static magnetic fields?
A. Decibels
B. Tesla
C. Gauss
D. Tesla and Gauss - ANSWER -D. Tesla and Gauss
, When does resonance occur?
A. When the patient is placed in isocenter and only experiences the static magnetic
field
B. When the radiofrequencies transmitted match the precessional speed of
hydrogen.
C. When the radiofrequencies are different than the precessional speed of
hydrogen.
D. When the radiofrequency is transmitted at 42.6 MHz - ANSWER -B. When the
radiofrequencies transmitted match the precessional speed of hydrogen.
An object that produces a weak repulsive force in presence of a strong magnetic
field is called what?
A. Diamagnetic
B. Paramagnetic
C. Superparamagnetic
D. Ferromagnetic - ANSWER -A. Diamagnetic
What does the image of MR with a red circle and slash through it represent?
A. MR Unsafe
B. MR Conditional
C. MR Safe
D. MR Compatible - ANSWER -A. MR Unsafe
Where is Cryogen found?
A. In the MR unit
B. In zone 3
C. In the equipment room
D. In the quench vent - ANSWER -A. In the MR Unit
Normal kidneys should excrete all gadolinium contrast from a patient how
quickly?