MRSO Mock Test 1 with verified detailed solutions || || || || || || ||
What pulse sequence will produce the most patient heating?
|| || || || || || || ||
A. Inverse recovery sequence
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B. Single shot fast spin echo
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C. Conventional spin echo
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D. Gradient Echo - correct answer✔✔B. Single shot fast spin echo
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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 - correct answer✔✔A. Magnetohyrdodynamic Effect
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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 - correct answer✔✔B. When the transmitted wavelength is
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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
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C. dB/dt
||
D. W/kg - correct answer✔✔D. W/kg
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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 - correct 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 - correct 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 - correct answer✔✔B. By
|| || || || || || || || || || || || || || || || || ||
the NRR of the headset and NRR of earplugs
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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 - correct 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 - correct 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?
|| || || || || || || || || || || ||
What pulse sequence will produce the most patient heating?
|| || || || || || || ||
A. Inverse recovery sequence
|| || ||
B. Single shot fast spin echo
|| || || || ||
C. Conventional spin echo
|| || ||
D. Gradient Echo - correct answer✔✔B. Single shot fast spin echo
|| || || || || || || || || ||
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 - correct 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 - correct 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 - correct 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 - correct 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 - correct 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 - correct 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 - correct 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 - correct 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?
|| || || || || || || || || || || ||
