Welcome to your Yearly safety exam

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1. 
What can the gradients do (single answer)
2. 
In the event that a volunteer in the scanner has cardiac arrest, what actions should the MR operator take (single answer)?
3. 
Who can open the door to the control room (single answer)?
4. 
Where do you do the written screening of the subject (single answer)?
5. 
What can the static magnetic field do (single answer)?
6. 
What is a quench (single answer)?
7. 
A research volunteer tells you they have been scanned many times for clinical reasons so there is no reason to re-evaluate them and they are cleared to enter the scanning room.
8. 
A subject checks the box that they have tattoos or permanent cosmetics. The next step is to (multiple answers possible):
9. 
Who decides when to push the Quench button (single answer):
10. 
The major risk of injury or harm due to a magnet quench is (single answer):
11. 
The magnetic field of both the 3T and the 7T extends outside the scanner bore.
12. 
If a study-volunteer states she could be pregnant you should (single answer):
13. 
Who needs to be cleared before they enter the MRI scanning room (single answer)?
14. 
Each subject can choose if they would like to wear earplugs, a headset, both or nothing during the scan.
15. 
What do you tell the participant prior to scanning (single answer)?
16. 
If a subject squeezes the emergency ball, you (single answer):
17. 
The main hazard of the static magnetic field is (single answer):
18. 
When a subject comes in for a scan with glasses and cannot see without them, you (single answer):
19. 
If a volunteer lying in the scanner complains of a body ache, dizziness or anxiety (including claustrophobia) in the middle of a scan session, you should (single answer):
20. 
Which of the following items must the experimenter removed from him- or herself  before going into the scanning room (multiple answers may be selected)? Read carefully!
21. 
Before beginning to scan a subject, you should (single answer):
22. 
What do you do when you have doubts regarding the subject compatibility (single answer)?
23. 
If you are not sure of the ferromagnetic qualities of an object you should (multiple answers may be selected):
24. 
Where can you bring a visitor (e.g. a new student in your lab, single answer)?
25. 
Study participants with which of the following may be safely scanned (single answer):
26. 
If an object is considered safe to be used in a 3 Tesla MR scanner, but has not been tested in a 7 Tesla scanner, it should be labeled as:
27. 
If the operating computer is shut down and unplugged, the magnetic field is is still present and screening requirements still hold.
28. 
Who is in charge of putting a participant in the scanner (single answer)?
29. 
What can the RF-coil do (single answer)?
30. 
Which of the following statements about the magnet of the MRI scanner are FALSE (multiple answers may be selected):
31. 
Which of the following is a likely consequence of forgetting to remove your wallet from your pocket before entering the scanner room:
32. 
What does SAR measure?
33. 
In the unlikely event of a quench where the helium escapes into the scanner room instead of to the outside environment, what is the main safety concern?
34. 
With regard to metal objects in the scanner room (multiple answers may be selected):
35. 
What is the unit for measurement of magnetic field strength?
36. 
To reduce the effects of peripheral nerve stimulation:
37. 
One of your participants has a big tattoo in the neck region, what do you do (multiple answers may be selected)?
38. 
While scanning you see an abnormal growth in the brain. What do you do?
39. 
What does the abbreviation MRI stand for?
40. 
Which part of the MRI is responsible for the loud noise during scanning?
41. 
What information is required for the informed consent form?
42. 
The magnet spontaneously quenches and the alarm of the oxygen meter goes off when you are scanning someone. What do you do?
43. 
The MRI scanner room door is open and blocked by a wheelchair. Which of the following options would help avoid a potential MR safety accident (multiple answers may be selected)?
44. 
If a test subject presents with a smartwatch, why should they remove it before entering the scanner room (multiple answers may be selected)?
45. 
All patients should be padded to ensure they do not touch the internal body RF transmit coil.
46. 
If you quench the magnet, the field is removed. Which field do we remove?
47. 
Which parameters affect RF and heating in a subject?
1 Patient weight
2 Flip angle
3 Turbo factor or ETL (echo train length)
4 Duration of scan
48. 
Torque is highest at
49. 
SAR stands for
50. 
What hazard is associated with ‘street clothes’?
51. 
A recommended approach to safety screening is to screen
52. 
If a subject had an MR scan yesterday they should
53. 
How can field homogeneity be improved?
54. 
How can signal to noise ratio be improved?
55. 
Shims are used to...
56. 
The direction of the main magnetic field (Bo) in a cylindrical closed bore scanner is
57. 
Which of the following is not an advantage of high-field (≥ 1.0 T) MR scanners?
58. 
Which coils are located closest to the patient in an MR scanner?
59. 
A 1.5 T MR scanner has a base operating frequency of approximately 64 MHz. In the electromagnetic spectrum, this is considered to be in the range of
60. 
If one moves from 1 meter to 2 meters away from a magnet, the fringe field will be reduced by a factor of approximately
61. 
The fringe fields of cylindrical superconducting magnet are highest
62. 
What is the “5 Gauss Line”?
63. 
Which of the following statements about MR scanner noise is false
64. 
Which of the following is not currently acceptable terminology for the safety of a device in MRI?