Question 1

The fringe magnetic field:
A. Is eliminated by magnetic shielding
 B. Is eliminated by shimming
 C. Poses no safety risks if the MRI machine is not scanning
 D. Can cause nearby medical devices to malfunction

Accepted Answer

D. Can cause nearby medical devices to malfunction

Question 2

Adequate patient care dictates a patient having an MRI should be __________ monitored.
 A. EtCO2 (End-Tidal CO2)
 B. PG (peripheral gating)
 C. Visually and/or verbally
 D. Not at all

Accepted Answer

C. Visually and/or verbally

Question 3

The percentage of patients reported to have reactions to gadolinium MRI contrast are:
 A. None
 B. Less than 1%
 C. 10%
 D. 42.57%

Accepted Answer

B. Less than 1%

Question 4

When would sterile technique be utilized?
 A. Upon receiving an isolation patient in the MRI suite
 B. When placing ECG leads on a patient's chest for a cardiac MR
 C. Performing a procedure that would puncture a patient's skin
 D. All of the above

Accepted Answer

C. When performing any procedure that would puncture a patient's skin

Question 5

RF heating is more of a concern in ________ sequences.
 A. Gradient echo
 B. Inversion recovery
 C. Perfusion
 D. Fast spin echo

Accepted Answer

D. Fast spin echo

Question 6

Prior to entering the MRI scan room, a patient should be screened for:
 A. Surgical history/implants
 B. Pregnancy
 C. Prior trauma or injury
 D. All of the above

Accepted Answer

D. All of the above

Question 7

It is ___________ that every patient having an MRI be provided auditory protection in the form _________
 A. Mandatory; lead shield
 B. Recommended; cotton balls
 C. Mandatory; earplugs and/or headphones
 D. Recommended; earplugs and/or headphones

Accepted Answer

Recommended; earplugs and/or headphones

Question 8

Regions of the body that do not quickly dissipate thermal absorption from SAR during MR procedures are:
 A. Head and neck
 B. Liver and kidneys
 C. Eyes and testicles
 D. Spine and sacrum
 E. All of the above

Accepted Answer

Eyes and testicles

Question 9

Cables from RF coils and gating leads should be:
 A. Coiled, preferably into a figure "8"
 B. Nicely formed into loops in the magnet bore
 C. Resting on the patient's arm or leg to immobilize the cables
 D. Braided and positioned straight in the bore

Accepted Answer

D. Braided and positioned straight in the bore

Question 10

FDA limits for whole body SAR is ______ over 15 minutes of scanning.
 A. 2 W/kg
 B. 4 W/kg
 C. 6 W/kg
 D. 8 W/kg

Accepted Answer

4 W/kg

Question 11

The pulse sequence that should be utilized the least in a patient with implanted metallic hardware is:
 A. Spin echo
 B. Gradient echo
 C. Inversion recovery
 D. Fast spin echo

Accepted Answer

Gradient echo

Question 12

The following items are typically permitted access a  high field MRI system during an MRI guided core biopsy:
 A. Stainless steel scissors
 C. Aluminum interventional equipment
 D. Sterile nonferrous biopsy tray
 E. None of the above
 F. C and/or D

Accepted Answer

F. C and/or D

Question 13

The primary biological effect of radiofrequency fields is ____________.
 A. Magnetophosphenes
 B. Hypertension
 C. Claustrophobia
 D. Tissue heating

Accepted Answer

D. Tissue heating

Question 14

When moving blood enters a magnetic field, an effect on the ECG seen as a "T wave swelling" or spike occurs, also known as:
 A. Hypertensive effect
 B. Magnetohydrodynamic effect
 C. Dynamothoracic effect
 D. Dynamometer

Accepted Answer

B. Magnetohydrodynamic effect

Question 15

A more accurate method of detecting small intra-ocular ferrous foreign bodies is:
 A. Ferromagnetic Detection systems
 B. Cat Scan
 C. Finger sweep
 D. Nuclear stress test

Accepted Answer

B. Cat Scan

Question 16

he FDA limit on time varying magnetic fields is __________.
 A. 5T/sec
 B. 12G/cm
 C. 20T/sec
 D. Once the patient experiences peripheral nerve stimulation

Accepted Answer

D. Once the patient experiences peripheral nerve stimulation

Question 17

The minimum acceptable method for detection of intra-ocular ferrous foreign bodies is:
 A. Ferromagnetic Detection systems
 B. Cat Scan
 C. Finger sweep
 D. X-ray

Accepted Answer

D. X-ray

Question 18

The general public is limited to a magnetic field of ___________?
 A. 1 Gauss
 B. 5 Gauss
 C. 10 Gauss
 D. 1 Tesla

Accepted Answer

B. 5 Gauss

Question 19

A patient with a history of _______ should have their GFR checked prior to the administration of IV contrast.
 A. Kidney disease
 B. Hypertension
 C. Diabetes
 D. All of the above

Accepted Answer

D. All of the above

Question 20

The effect by which a patient may experience a visual stimulation, described as "seeing stars", is known as:
 A. Magnetic personality effect
 B. Magnetophosphenes
 C. Magneto-dynamic effect
 D. Magnet dynamic contrast susceptibility effect

Accepted Answer

B. Magnetophosphenes

Question 21

SAR stands for:
 A. Standard absorption ratio
 B. Specific absorption rate
 C. Standard acquisition rate
 D. Spectral attenuation relaxation

Accepted Answer

B. Specific absorption rate

Question 22

Risk factors of MR exposure with regards to SAR absorption include all of the following EXCEPT:
 A. Cardiovascular disease
 B. Hypotension
 C. Obesity
 D. Geriatric patients

Accepted Answer

Hypotension

Question 23

Patient types who may require additional monitoring 
 A. Patients with limited vocal and/or auditory ability
 B. Critical and/or unresponsive patients
 C. Pediatric (with or without sedation)
 D. Claustrophobic patients
 E. All of the above

Accepted Answer

E. All of the above

Question 24

During a quench, patients and employees should be evacuated from the scan room to prevent __________.
 A. Ruptured tympanic membranes
 B. Frostbite and asphyxiation
 C. Subdural hematoma
 D. All of the above
 E. A and B

Accepted Answer

E. A and B

Question 25

As the flip angle is doubled, the RF absorption increases by a factor of __________.
 A. 1
 B. 2
 C. 3
 D. 4

Accepted Answer

D. 4

Question	Answer
The fringe magnetic field: A. Is eliminated by magnetic shielding B. Is eliminated by shimming C. Poses no safety risks if the MRI machine is not scanning D. Can cause nearby medical devices to malfunction	D. Can cause nearby medical devices to malfunction
Adequate patient care dictates a patient having an MRI should be __________ monitored. A. EtCO2 (End-Tidal CO2) B. PG (peripheral gating) C. Visually and/or verbally D. Not at all	C. Visually and/or verbally
The percentage of patients reported to have reactions to gadolinium MRI contrast are: A. None B. Less than 1% C. 10% D. 42.57%	B. Less than 1%
When would sterile technique be utilized? A. Upon receiving an isolation patient in the MRI suite B. When placing ECG leads on a patient's chest for a cardiac MR C. Performing a procedure that would puncture a patient's skin D. All of the above	C. When performing any procedure that would puncture a patient's skin
RF heating is more of a concern in ________ sequences. A. Gradient echo B. Inversion recovery C. Perfusion D. Fast spin echo	D. Fast spin echo
Prior to entering the MRI scan room, a patient should be screened for: A. Surgical history/implants B. Pregnancy C. Prior trauma or injury D. All of the above	D. All of the above
It is ___________ that every patient having an MRI be provided auditory protection in the form _________ A. Mandatory; lead shield B. Recommended; cotton balls C. Mandatory; earplugs and/or headphones D. Recommended; earplugs and/or headphones	Recommended; earplugs and/or headphones
Regions of the body that do not quickly dissipate thermal absorption from SAR during MR procedures are: A. Head and neck B. Liver and kidneys C. Eyes and testicles D. Spine and sacrum E. All of the above	Eyes and testicles
Cables from RF coils and gating leads should be: A. Coiled, preferably into a figure "8" B. Nicely formed into loops in the magnet bore C. Resting on the patient's arm or leg to immobilize the cables D. Braided and positioned straight in the bore	D. Braided and positioned straight in the bore
FDA limits for whole body SAR is ______ over 15 minutes of scanning. A. 2 W/kg B. 4 W/kg C. 6 W/kg D. 8 W/kg	4 W/kg
The pulse sequence that should be utilized the least in a patient with implanted metallic hardware is: A. Spin echo B. Gradient echo C. Inversion recovery D. Fast spin echo	Gradient echo
The following items are typically permitted access a high field MRI system during an MRI guided core biopsy: A. Stainless steel scissors C. Aluminum interventional equipment D. Sterile nonferrous biopsy tray E. None of the above F. C and/or D	F. C and/or D
The primary biological effect of radiofrequency fields is ____________. A. Magnetophosphenes B. Hypertension C. Claustrophobia D. Tissue heating	D. Tissue heating
When moving blood enters a magnetic field, an effect on the ECG seen as a "T wave swelling" or spike occurs, also known as: A. Hypertensive effect B. Magnetohydrodynamic effect C. Dynamothoracic effect D. Dynamometer	B. Magnetohydrodynamic effect
A more accurate method of detecting small intra-ocular ferrous foreign bodies is: A. Ferromagnetic Detection systems B. Cat Scan C. Finger sweep D. Nuclear stress test	B. Cat Scan
he FDA limit on time varying magnetic fields is __________. A. 5T/sec B. 12G/cm C. 20T/sec D. Once the patient experiences peripheral nerve stimulation	D. Once the patient experiences peripheral nerve stimulation
The minimum acceptable method for detection of intra-ocular ferrous foreign bodies is: A. Ferromagnetic Detection systems B. Cat Scan C. Finger sweep D. X-ray	D. X-ray
The general public is limited to a magnetic field of ___________? A. 1 Gauss B. 5 Gauss C. 10 Gauss D. 1 Tesla	B. 5 Gauss
A patient with a history of _______ should have their GFR checked prior to the administration of IV contrast. A. Kidney disease B. Hypertension C. Diabetes D. All of the above	D. All of the above
The effect by which a patient may experience a visual stimulation, described as "seeing stars", is known as: A. Magnetic personality effect B. Magnetophosphenes C. Magneto-dynamic effect D. Magnet dynamic contrast susceptibility effect	B. Magnetophosphenes
SAR stands for: A. Standard absorption ratio B. Specific absorption rate C. Standard acquisition rate D. Spectral attenuation relaxation	B. Specific absorption rate
Risk factors of MR exposure with regards to SAR absorption include all of the following EXCEPT: A. Cardiovascular disease B. Hypotension C. Obesity D. Geriatric patients	Hypotension
Patient types who may require additional monitoring A. Patients with limited vocal and/or auditory ability B. Critical and/or unresponsive patients C. Pediatric (with or without sedation) D. Claustrophobic patients E. All of the above	E. All of the above
During a quench, patients and employees should be evacuated from the scan room to prevent __________. A. Ruptured tympanic membranes B. Frostbite and asphyxiation C. Subdural hematoma D. All of the above E. A and B	E. A and B
As the flip angle is doubled, the RF absorption increases by a factor of __________. A. 1 B. 2 C. 3 D. 4	D. 4

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MRI patient safety