MRI Registry Test #1 with all Correct & 100% Verified
Answers |Actual Complete Exam| Already Graded A+
Which of the following implants may pose a problem during scanning?
a.implantable drug infusion pumps
b. cardiac pacemakers/breast tissue expanders
c. bone growth stimulators
d. all of the above ✔Correct Answer-D
Which of the following could result from scanning a pt with a cardiac pacemaker?
a. changes of programming
b. induced current in the lead wire/pt burns
c. pacemaker may become dislodged and pulled from pt's chest ✔Correct Answer-A and B
Which of the following procedures would be acceptable in checking for ferrous qualities of accessory
devices?
a. Check the weight
b. hand-held magnet
c. manufacturer label
d. take device into room ✔Correct Answer-B
A ___ reaction to contrast involves respiratory, cardiovascular, cutaneous, and possibly
gastrointestinal manifestations? ✔Correct Answer-Anaphylactoid
Which of the following factors are responsible for inducing a physiologic response to induced
voltage?
a. orientation of gradient field
b. pt's size
c. frequency of stimulus
d. all of the above ✔Correct Answer-D
___ are reported visual sensations, or flashes of light, that result from direct excitation of optic
nerve, induced by the gradient magnetic fields. ✔Correct Answer-Magnetophosphenes
At the present time, what is the FDA recommended safe SAR level to the head? ✔Correct Answer-
3W/kg
Compared with conventional SE sequences, the fast pulse sequences, such as FSE or TSE have ___ RF
deposition. ✔Correct Answer-Increased
Anesthesiologists consider the use of ___ to be a standard practice for monitoring when scanning
sedated or anesthetized pts. ✔Correct Answer-Pulse Ox
After contrast injection, paramagnetic contrast agents affect pt tissue in which of the following ways?
✔Correct Answer-Decrease T1 and T2 relaxation times
Which of the following contrast agents is an ionic compound?
a. Mag
b. Prohance
, c. Omniscan
d. None of the above ✔Correct Answer-D
Following the injection of contrast, which of the following pts are most likely to have serious
reaction?
a. asthma/allergic respiratory disorders
b. High BUN levels
c. Anemic pts.
d. Claustrophobics ✔Correct Answer-A
Which position best demonstrates the collateral ligaments of the knee? ✔Correct Answer-COR
What is the major advantage of using a surface coil? ✔Correct Answer-Increased SNR
The closer a receiver coil is to the pt, the less RF energy is needed to create trans mag. - what is the
result of this phenomenon? ✔Correct Answer-Reduced SAR to pt
Which of the following coils is not transmit/receive?
a. head
b. body
c. TMJ
d. Extremity ✔Correct Answer-C
Which coil provides the highest SNR when scanning a TMJ? ✔Correct Answer-3" circular coil
Which coils yields the high SNR of a sensitive, small surface coil, yet covers a large area? ✔Correct
Answer-Phased Array
____ contrast enhancement occurs when the tissue of interest appears darker on images following
the administration of contrast. ✔Correct Answer-Negative
If a tech wanted a higher res on a hip scan, which of the following would they select? ✔Correct
Answer-256x256
____ is an algorithm which creates a 2D projective image from a 3D dataset, using the value of the
brightest pixel. ✔Correct Answer-MIP
Gad is a ____ product? ✔Correct Answer-Paramagnetic
FDA approved oral contrast displays a _____ appearance in the bowel. ✔Correct Answer-Dark T1 /
Dark T2
Which of the following are important precautions when using a surface coil?
a. restricted FOV
b. Positioning is critical
c. surface coil must be perp to XY plane ✔Correct Answer-a,b,c
Which planes have become widely accepted as the standard orientations for viewing oribts?
✔Correct Answer-Trans(ax) / COR
Answers |Actual Complete Exam| Already Graded A+
Which of the following implants may pose a problem during scanning?
a.implantable drug infusion pumps
b. cardiac pacemakers/breast tissue expanders
c. bone growth stimulators
d. all of the above ✔Correct Answer-D
Which of the following could result from scanning a pt with a cardiac pacemaker?
a. changes of programming
b. induced current in the lead wire/pt burns
c. pacemaker may become dislodged and pulled from pt's chest ✔Correct Answer-A and B
Which of the following procedures would be acceptable in checking for ferrous qualities of accessory
devices?
a. Check the weight
b. hand-held magnet
c. manufacturer label
d. take device into room ✔Correct Answer-B
A ___ reaction to contrast involves respiratory, cardiovascular, cutaneous, and possibly
gastrointestinal manifestations? ✔Correct Answer-Anaphylactoid
Which of the following factors are responsible for inducing a physiologic response to induced
voltage?
a. orientation of gradient field
b. pt's size
c. frequency of stimulus
d. all of the above ✔Correct Answer-D
___ are reported visual sensations, or flashes of light, that result from direct excitation of optic
nerve, induced by the gradient magnetic fields. ✔Correct Answer-Magnetophosphenes
At the present time, what is the FDA recommended safe SAR level to the head? ✔Correct Answer-
3W/kg
Compared with conventional SE sequences, the fast pulse sequences, such as FSE or TSE have ___ RF
deposition. ✔Correct Answer-Increased
Anesthesiologists consider the use of ___ to be a standard practice for monitoring when scanning
sedated or anesthetized pts. ✔Correct Answer-Pulse Ox
After contrast injection, paramagnetic contrast agents affect pt tissue in which of the following ways?
✔Correct Answer-Decrease T1 and T2 relaxation times
Which of the following contrast agents is an ionic compound?
a. Mag
b. Prohance
, c. Omniscan
d. None of the above ✔Correct Answer-D
Following the injection of contrast, which of the following pts are most likely to have serious
reaction?
a. asthma/allergic respiratory disorders
b. High BUN levels
c. Anemic pts.
d. Claustrophobics ✔Correct Answer-A
Which position best demonstrates the collateral ligaments of the knee? ✔Correct Answer-COR
What is the major advantage of using a surface coil? ✔Correct Answer-Increased SNR
The closer a receiver coil is to the pt, the less RF energy is needed to create trans mag. - what is the
result of this phenomenon? ✔Correct Answer-Reduced SAR to pt
Which of the following coils is not transmit/receive?
a. head
b. body
c. TMJ
d. Extremity ✔Correct Answer-C
Which coil provides the highest SNR when scanning a TMJ? ✔Correct Answer-3" circular coil
Which coils yields the high SNR of a sensitive, small surface coil, yet covers a large area? ✔Correct
Answer-Phased Array
____ contrast enhancement occurs when the tissue of interest appears darker on images following
the administration of contrast. ✔Correct Answer-Negative
If a tech wanted a higher res on a hip scan, which of the following would they select? ✔Correct
Answer-256x256
____ is an algorithm which creates a 2D projective image from a 3D dataset, using the value of the
brightest pixel. ✔Correct Answer-MIP
Gad is a ____ product? ✔Correct Answer-Paramagnetic
FDA approved oral contrast displays a _____ appearance in the bowel. ✔Correct Answer-Dark T1 /
Dark T2
Which of the following are important precautions when using a surface coil?
a. restricted FOV
b. Positioning is critical
c. surface coil must be perp to XY plane ✔Correct Answer-a,b,c
Which planes have become widely accepted as the standard orientations for viewing oribts?
✔Correct Answer-Trans(ax) / COR
