MRSO Mock Exam 1with 100% accurate detailed solutions || || || || || || ||
What type of gadolinium contrast has been shown to cause falsely low serum calcium
|| || || || || || || || || || || || || ||
laboratory values? ||
There is no correlation || || ||
Macrocyclic
Linear ionic ||
Linear non-ionic - correct answer✔✔Linear non-ionic
|| || || || ||
What is the limit of the static magnetic field for patients <1 month old?
|| || || || || || || || || || || || ||
2T
8T
4T
3T - correct answer✔✔4T
|| || ||
Which of the following implants hold the most thermal risk to a patient?
|| || || || || || || || || || || ||
Bone screw ||
Pacemaker lead attached to a generator || || || || ||
Abandon pacemaker lead || ||
Gallbladder clip - correct answer✔✔Abandon pacemaker lead || || || || || ||
PNS occurs in our patient due to which of the following processes?
|| || || || || || || || || || ||
,Lenz Law ||
Faraday's law ||
Lorentz forces ||
Ohm's law ||
QUESTION ERROR/CONCERN - correct answer✔✔Faraday's law || || || || ||
5,000G is equal to _____ T. || || || || ||
2T
0.25T
1T
0.5T - correct answer✔✔0.5T
|| || ||
Which of the following is true of tattoos? Select all that apply.
|| || || || || || || || || || ||
Skin can be twisted by the static magnetic field
|| || || || || || || ||
The strong static field can erase fresh tattoos
|| || || || || || ||
Can cause a burn
|| || ||
Can rip out tattoos - correct answer✔✔Can cause a burn
|| || || || || || || || ||
What needs to be in site when complying with the line of sight rule defined in the ACR
|| || || || || || || || || || || || || || || || || ||
Manual on MRI Safety? Select all that apply.
|| || || || || || ||
Door to Zone 3 || || ||
Console
,Patient
Door to Zone 4 - correct answer✔✔Console
|| || || || || ||
Patient
Door to Zone 4
|| || ||
Anthropogenic effects of gadolinium would most likely be seen where? || || || || || || || || ||
Rural areas ||
Towns with many rivers and lakes
|| || || || ||
Cities with large healthcare facilities - correct answer✔✔Cities with large healthcare
|| || || || || || || || || || ||
facilities
Which of the following are correct when using a metal detector to screening a patient for
|| || || || || || || || || || || || || || || ||
MR threats?
||
They can not determine what is ferrous or not.
|| || || || || || || ||
They will only detect ferrous objects.
|| || || || ||
They are one of the most effective means of identifying risk in MR.
|| || || || || || || || || || || ||
They are a must in ensuring the safety of our patients and are recommended by the ACR
|| || || || || || || || || || || || || || || || ||
Manual on MRI Safety - correct answer✔✔They can not determine what is ferrous or not.
|| || || || || || || || || || || || || ||
Which of the following issues could occur with an insulin/pain pump? Select all that apply.
|| || || || || || || || || || || || || ||
Damage to the pump || || ||
Infusing a bolus of medication || || || ||
Heating in leads - correct answer✔✔Damage to the pump
|| || || || || || || ||
Infusing a bolus of medication || || || ||
, What is the FDA limit of the static magnetic field for patients >1 month old?
|| || || || || || || || || || || || || ||
10T
2T
4T
8T - correct answer✔✔8T
|| || ||
What makes the time-varying gradient field (TVGF) different than the time-varying RF field
|| || || || || || || || || || || ||
(TVRF)?
||
The TVGF will produce resonance in the patient.
|| || || || || || ||
The TVGF uses a faster changing magnetic field than the TVRF.
|| || || || || || || || || ||
The TVGF uses a slower changing magnetic field than the TVRF.
|| || || || || || || || || ||
The TVGF will induce more heating in the patient than the TVRF. - correct answer✔✔The
|| || || || || || || || || || || || || || ||
TVGF uses a slower changing magnetic field than the TVRF.
|| || || || || || || || ||
A proximity burn occurs when?
|| || || ||
A patient's skin is in contact with the gantry.
|| || || || || || || ||
When an ECG wire forms a loop.
|| || || || || ||
When a patient's skin forms a conductive loop.
|| || || || || || ||
When a electrical conductive material is placed on our patient. - correct answer✔✔A
|| || || || || || || || || || || || ||
patient's skin is in contact with the gantry.
|| || || || || || ||
According to the IEC, what is the limit for the static magnetic field for clinical MRI?
|| || || || || || || || || || || || || || ||
What type of gadolinium contrast has been shown to cause falsely low serum calcium
|| || || || || || || || || || || || || ||
laboratory values? ||
There is no correlation || || ||
Macrocyclic
Linear ionic ||
Linear non-ionic - correct answer✔✔Linear non-ionic
|| || || || ||
What is the limit of the static magnetic field for patients <1 month old?
|| || || || || || || || || || || || ||
2T
8T
4T
3T - correct answer✔✔4T
|| || ||
Which of the following implants hold the most thermal risk to a patient?
|| || || || || || || || || || || ||
Bone screw ||
Pacemaker lead attached to a generator || || || || ||
Abandon pacemaker lead || ||
Gallbladder clip - correct answer✔✔Abandon pacemaker lead || || || || || ||
PNS occurs in our patient due to which of the following processes?
|| || || || || || || || || || ||
,Lenz Law ||
Faraday's law ||
Lorentz forces ||
Ohm's law ||
QUESTION ERROR/CONCERN - correct answer✔✔Faraday's law || || || || ||
5,000G is equal to _____ T. || || || || ||
2T
0.25T
1T
0.5T - correct answer✔✔0.5T
|| || ||
Which of the following is true of tattoos? Select all that apply.
|| || || || || || || || || || ||
Skin can be twisted by the static magnetic field
|| || || || || || || ||
The strong static field can erase fresh tattoos
|| || || || || || ||
Can cause a burn
|| || ||
Can rip out tattoos - correct answer✔✔Can cause a burn
|| || || || || || || || ||
What needs to be in site when complying with the line of sight rule defined in the ACR
|| || || || || || || || || || || || || || || || || ||
Manual on MRI Safety? Select all that apply.
|| || || || || || ||
Door to Zone 3 || || ||
Console
,Patient
Door to Zone 4 - correct answer✔✔Console
|| || || || || ||
Patient
Door to Zone 4
|| || ||
Anthropogenic effects of gadolinium would most likely be seen where? || || || || || || || || ||
Rural areas ||
Towns with many rivers and lakes
|| || || || ||
Cities with large healthcare facilities - correct answer✔✔Cities with large healthcare
|| || || || || || || || || || ||
facilities
Which of the following are correct when using a metal detector to screening a patient for
|| || || || || || || || || || || || || || || ||
MR threats?
||
They can not determine what is ferrous or not.
|| || || || || || || ||
They will only detect ferrous objects.
|| || || || ||
They are one of the most effective means of identifying risk in MR.
|| || || || || || || || || || || ||
They are a must in ensuring the safety of our patients and are recommended by the ACR
|| || || || || || || || || || || || || || || || ||
Manual on MRI Safety - correct answer✔✔They can not determine what is ferrous or not.
|| || || || || || || || || || || || || ||
Which of the following issues could occur with an insulin/pain pump? Select all that apply.
|| || || || || || || || || || || || || ||
Damage to the pump || || ||
Infusing a bolus of medication || || || ||
Heating in leads - correct answer✔✔Damage to the pump
|| || || || || || || ||
Infusing a bolus of medication || || || ||
, What is the FDA limit of the static magnetic field for patients >1 month old?
|| || || || || || || || || || || || || ||
10T
2T
4T
8T - correct answer✔✔8T
|| || ||
What makes the time-varying gradient field (TVGF) different than the time-varying RF field
|| || || || || || || || || || || ||
(TVRF)?
||
The TVGF will produce resonance in the patient.
|| || || || || || ||
The TVGF uses a faster changing magnetic field than the TVRF.
|| || || || || || || || || ||
The TVGF uses a slower changing magnetic field than the TVRF.
|| || || || || || || || || ||
The TVGF will induce more heating in the patient than the TVRF. - correct answer✔✔The
|| || || || || || || || || || || || || || ||
TVGF uses a slower changing magnetic field than the TVRF.
|| || || || || || || || ||
A proximity burn occurs when?
|| || || ||
A patient's skin is in contact with the gantry.
|| || || || || || || ||
When an ECG wire forms a loop.
|| || || || || ||
When a patient's skin forms a conductive loop.
|| || || || || || ||
When a electrical conductive material is placed on our patient. - correct answer✔✔A
|| || || || || || || || || || || || ||
patient's skin is in contact with the gantry.
|| || || || || || ||
According to the IEC, what is the limit for the static magnetic field for clinical MRI?
|| || || || || || || || || || || || || || ||
