MRSO Mock Test 1
1. 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: B. Single shot fast spin echo | | | | | | |
2. 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: A. Magnetohyrdodynamic Effect | | |
3. 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: B. When the transmitted wavelength is half of
| | | | | | | | | | | |
the
|
B0 field strength or is a multiple of the length of that
| | | | | | | | | | |
4. What unit of measure is used for SAR?
| | | | | | |
A. A/1b
B. dB/dx
C. dB/dt
D. W/kg: D. W/kg | |
5. The IEC 60601-2-33 whole body normal operating mode is
| | | | | | | |
the energy requirements limited in the first level | | | | | | |
controlled operating mode.
| | |
1 |/ |21
,A. Triple
2 |/ |21
, B. Double
C. Half
D. Not comparable to: C. Half | | | |
6. 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: B. Ferromagnetic detection system | | | | |
C.Written screening sheet
| | |
D.Patient Gown
| |
7. 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: B. By the
| | | | | | | | | | | | | | | |
NRR of the headset and NRR of earplugs
| | | | | | | |
8. 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: B. 4 W/kg for 6 min
| | | | | | | | | |
9. 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: A. Should be
| | | | | | | | | | | | |
noted with signage
| | |
3 |/ |21
1. 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: B. Single shot fast spin echo | | | | | | |
2. 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: A. Magnetohyrdodynamic Effect | | |
3. 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: B. When the transmitted wavelength is half of
| | | | | | | | | | | |
the
|
B0 field strength or is a multiple of the length of that
| | | | | | | | | | |
4. What unit of measure is used for SAR?
| | | | | | |
A. A/1b
B. dB/dx
C. dB/dt
D. W/kg: D. W/kg | |
5. The IEC 60601-2-33 whole body normal operating mode is
| | | | | | | |
the energy requirements limited in the first level | | | | | | |
controlled operating mode.
| | |
1 |/ |21
,A. Triple
2 |/ |21
, B. Double
C. Half
D. Not comparable to: C. Half | | | |
6. 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: B. Ferromagnetic detection system | | | | |
C.Written screening sheet
| | |
D.Patient Gown
| |
7. 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: B. By the
| | | | | | | | | | | | | | | |
NRR of the headset and NRR of earplugs
| | | | | | | |
8. 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: B. 4 W/kg for 6 min
| | | | | | | | | |
9. 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: A. Should be
| | | | | | | | | | | | |
noted with signage
| | |
3 |/ |21
