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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.
A. Triple
, MRSO Mock Test 1
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
, MRSO Mock Test 1
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
10. 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: D. Non allergic reaction
11. How long does it take to excrete gadolinium contrast from a patient with
normal kidney function?
A. 24 hours
B. 48 hours
C. 4 hours
D. 9 hours: A. 24 Hours
12. How many gauss are in one Tesla?
A. 10
B. 10,000
C. 100
D. 1,000: B. 10,000
13. Gadolinium contains what kind of magnetism?
A. Super paramagnetic
B. Ferromagnetic
C. Paramagnetic
D. Diamagnetic: C. Paramagnetic
14. The T wave in the cardiac cycle represents what?
A. Heart Depolarization
B. None of the choices
C. Arrythmia
D. Heart Repolarization: D. Heart Repolarization
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