MRSO COMPLETE TEST BANK WITH
ACCURATE ANSWERS AND EXPERT
REVIEW NOTES
●● During acquisition, it is noticed that the T wave of the cardiac cycle
is elevated. What is this artifact called?
A. Magnetohydrodynamic Effect
B. Excitation
C. Teratogenesis
D. Magnetophosphenes
Answer: A. Magnetohyrdodynamic Effect
●● When can heating occur in a wire?
A. Only in ferrous object
B. When the transmitted wavelength is half of the B0 field strength or is
a multiple of the length of that
C. When objects get smaller
D. In small round metal objects
Answer: B. When the transmitted wavelength is half of the B0 field
strength or is a multiple of the length of that
,●● What unit of measure is used for SAR?
A. A/1b
B. dB/dx
C. dB/dt
D. W/kg
Answer: D. W/kg
●● The IEC 60601-2-33 whole body normal operating mode is
________________ the energy requirements limited in the first level
controlled operating mode.
A. Triple
B. Double
C. Half
D. Not comparable to
Answer: C. Half
●● Which of the following are recommended by the ACR guidance in
MR Safety 2013 in proper scanning of a patient?
A. Metal Detector
,B. Ferromagnetic detection system
C. Written screening sheet
D. Patient Gown
Answer: B. Ferromagnetic detection system
C. Written screening sheet
D. Patient Gown
●● Using a headset and ear plugs will reduce the noise by how much?
A. By the NRR of headset
B. By the NRR of the headset and NRR of earplugs
C. 50 dB
D. By the NRR of the headset and the NRR of earplug divided by 2
Answer: B. By the NRR of the headset and NRR of earplugs
●● What is the FDA SAR limit for the whole body in first level
controlled operating mode?
A. 7 W/kg for 6 min
B. 4 W/kg for 6min
C. 3 W/kg for 6 min
D. 8 W/kg for 6 min
, Answer: B. 4 W/kg for 6 min
●● Which of the following is true of Zone IV? Select all that apply.
A. Should be noted with signage
B. No unsafe implants may cross the 5-guass unless implant is
researched and analyzed for risk
C. Contain metal detectors for implant identification
D. This area should be monitored by a level 2 MR personnel
Answer: A. Should be noted with signage
B. No unsafe implants may cross the 5-guass unless implant is
researched and analyzed for risk
D. This area should be monitored by a level 2 MR personnel
●● Pain at the injection site when gadolinium contrast is administered is
considered what?
A. None of these choices
B. Anaphylaxis
C. An allergic reaction
D. A non-allergic reaction
Answer: D. Non allergic reaction
ACCURATE ANSWERS AND EXPERT
REVIEW NOTES
●● During acquisition, it is noticed that the T wave of the cardiac cycle
is elevated. What is this artifact called?
A. Magnetohydrodynamic Effect
B. Excitation
C. Teratogenesis
D. Magnetophosphenes
Answer: A. Magnetohyrdodynamic Effect
●● When can heating occur in a wire?
A. Only in ferrous object
B. When the transmitted wavelength is half of the B0 field strength or is
a multiple of the length of that
C. When objects get smaller
D. In small round metal objects
Answer: B. When the transmitted wavelength is half of the B0 field
strength or is a multiple of the length of that
,●● What unit of measure is used for SAR?
A. A/1b
B. dB/dx
C. dB/dt
D. W/kg
Answer: D. W/kg
●● The IEC 60601-2-33 whole body normal operating mode is
________________ the energy requirements limited in the first level
controlled operating mode.
A. Triple
B. Double
C. Half
D. Not comparable to
Answer: C. Half
●● Which of the following are recommended by the ACR guidance in
MR Safety 2013 in proper scanning of a patient?
A. Metal Detector
,B. Ferromagnetic detection system
C. Written screening sheet
D. Patient Gown
Answer: B. Ferromagnetic detection system
C. Written screening sheet
D. Patient Gown
●● Using a headset and ear plugs will reduce the noise by how much?
A. By the NRR of headset
B. By the NRR of the headset and NRR of earplugs
C. 50 dB
D. By the NRR of the headset and the NRR of earplug divided by 2
Answer: B. By the NRR of the headset and NRR of earplugs
●● What is the FDA SAR limit for the whole body in first level
controlled operating mode?
A. 7 W/kg for 6 min
B. 4 W/kg for 6min
C. 3 W/kg for 6 min
D. 8 W/kg for 6 min
, Answer: B. 4 W/kg for 6 min
●● Which of the following is true of Zone IV? Select all that apply.
A. Should be noted with signage
B. No unsafe implants may cross the 5-guass unless implant is
researched and analyzed for risk
C. Contain metal detectors for implant identification
D. This area should be monitored by a level 2 MR personnel
Answer: A. Should be noted with signage
B. No unsafe implants may cross the 5-guass unless implant is
researched and analyzed for risk
D. This area should be monitored by a level 2 MR personnel
●● Pain at the injection site when gadolinium contrast is administered is
considered what?
A. None of these choices
B. Anaphylaxis
C. An allergic reaction
D. A non-allergic reaction
Answer: D. Non allergic reaction
