MRI Pacemaker Safety Exam Practice
Questions and Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
Question 1
What is the primary reason a patient with a pacemaker requires specialized
assessment before MRI?
A. Pacemakers always prevent image formation
B. The MRI environment can interact with the pacemaker system
C. Pacemakers contain radioactive material
D. MRI always causes pacemaker battery failure
Rationale: MRI can interact with a pacemaker system through the static
magnetic field, gradient fields, and RF energy. Potential concerns include device
malfunction, inappropriate sensing or pacing, heating, and changes in device
function. The specific device system and applicable conditions must therefore be
evaluated before scanning.
Question 2
What does the term “MR Conditional” mean when applied to a pacemaker
system?
A. The pacemaker can never be scanned with MRI
B. The pacemaker is safe in every MRI environment
C. The pacemaker is safe only when the patient is awake
D. The pacemaker is safe under specified MRI conditions
,Rationale: MR Conditional means that the device has been demonstrated to
pose no known hazard under specified conditions. Those conditions may include
scanner field strength, RF exposure, gradient limitations, device configuration,
programming, and other manufacturer requirements.
Question 3
Which component must be considered when determining whether a pacemaker
system is MR Conditional?
A. The patient's clothing
B. The pulse generator and implanted leads
C. The patient's blood pressure cuff
D. The MRI room lighting
Rationale: The generator and implanted leads form the relevant pacemaker
system. MRI conditions may apply to a specific combination of generator and lead
models rather than to the generator alone.
Question 4
Why is identifying the exact pacemaker model important before MRI?
A. It determines the patient's heart rate
B. It determines the MRI table height
C. The manufacturer's MRI conditions may be model-specific
D. It determines whether contrast is required
Rationale: MRI conditions can be specific to the exact device model and system
configuration. Accurate identification allows the team to determine applicable
field strength, programming, SAR or other RF restrictions, and other
manufacturer-defined requirements.
Question 5
,Which source is generally most useful for determining the MRI conditions of a
specific pacemaker system?
A. The patient's clothing label
B. The MRI technologist's personal experience
C. A generic internet search without device identification
D. The manufacturer's device-specific MR labeling and documentation
Rationale: Manufacturer-specific MR labeling and documentation provide the
authoritative conditions under which a particular pacemaker system may be
scanned. Generic assumptions should not replace device-specific information.
Question 6
What is a major difference between an MR Conditional pacemaker system and a
non-MR-conditional system?
A. Only MR Conditional systems contain leads
B. MR Conditional systems have defined conditions under which MRI can be
performed
C. Non-MR-conditional systems contain no electronics
D. MR Conditional systems never require device programming
Rationale: MR Conditional systems have specified conditions for MRI use. These
conditions must be satisfied during the examination. MR-conditional status does
not mean that the device can be scanned without restrictions.
Question 7
What is meant by a “legacy” pacemaker system in the MRI context?
A. A newly manufactured MR Conditional system
B. A temporary external pacemaker
C. A system that is not labeled as MR Conditional
D. A pacemaker with no implanted leads
*Rationale: A legacy or non-MR-conditional system is one that does not have
MR-conditional labeling for the relevant configuration. Contemporary evidence
, indicates that MRI may sometimes be performed in such patients under
specialized protocols, but this requires appropriate risk assessment and
safeguards. *
Question 8
Which statement best describes current evidence regarding MRI in patients with
non-MR-conditional pacemakers?
A. MRI is automatically safe at every field strength
B. MRI is never possible under any circumstances
C. Only extremity MRI can ever be considered
D. MRI may be performed in selected patients under appropriate protocols at
experienced centers
*Rationale: Contemporary evidence supports MRI in selected patients with non-
MR-conditional devices when appropriate protocols are followed. The 2024
SCMR consensus describes evidence for carefully controlled MRI, including 1.5-T
examinations, in patients with legacy devices. *
Question 9
What is an important first step when a patient reports having a pacemaker but
does not know its model?
A. Assume it is MR Conditional
B. Proceed with MRI if the patient feels well
C. Obtain reliable device identification before determining MRI eligibility
D. Remove the pacemaker before imaging
Rationale: Reliable device identification is necessary before determining MRI
eligibility. Device records, implant documentation, device interrogation,
radiographic identification, or other appropriate methods may be used according
to institutional procedures.
Question 10
Questions and Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
Question 1
What is the primary reason a patient with a pacemaker requires specialized
assessment before MRI?
A. Pacemakers always prevent image formation
B. The MRI environment can interact with the pacemaker system
C. Pacemakers contain radioactive material
D. MRI always causes pacemaker battery failure
Rationale: MRI can interact with a pacemaker system through the static
magnetic field, gradient fields, and RF energy. Potential concerns include device
malfunction, inappropriate sensing or pacing, heating, and changes in device
function. The specific device system and applicable conditions must therefore be
evaluated before scanning.
Question 2
What does the term “MR Conditional” mean when applied to a pacemaker
system?
A. The pacemaker can never be scanned with MRI
B. The pacemaker is safe in every MRI environment
C. The pacemaker is safe only when the patient is awake
D. The pacemaker is safe under specified MRI conditions
,Rationale: MR Conditional means that the device has been demonstrated to
pose no known hazard under specified conditions. Those conditions may include
scanner field strength, RF exposure, gradient limitations, device configuration,
programming, and other manufacturer requirements.
Question 3
Which component must be considered when determining whether a pacemaker
system is MR Conditional?
A. The patient's clothing
B. The pulse generator and implanted leads
C. The patient's blood pressure cuff
D. The MRI room lighting
Rationale: The generator and implanted leads form the relevant pacemaker
system. MRI conditions may apply to a specific combination of generator and lead
models rather than to the generator alone.
Question 4
Why is identifying the exact pacemaker model important before MRI?
A. It determines the patient's heart rate
B. It determines the MRI table height
C. The manufacturer's MRI conditions may be model-specific
D. It determines whether contrast is required
Rationale: MRI conditions can be specific to the exact device model and system
configuration. Accurate identification allows the team to determine applicable
field strength, programming, SAR or other RF restrictions, and other
manufacturer-defined requirements.
Question 5
,Which source is generally most useful for determining the MRI conditions of a
specific pacemaker system?
A. The patient's clothing label
B. The MRI technologist's personal experience
C. A generic internet search without device identification
D. The manufacturer's device-specific MR labeling and documentation
Rationale: Manufacturer-specific MR labeling and documentation provide the
authoritative conditions under which a particular pacemaker system may be
scanned. Generic assumptions should not replace device-specific information.
Question 6
What is a major difference between an MR Conditional pacemaker system and a
non-MR-conditional system?
A. Only MR Conditional systems contain leads
B. MR Conditional systems have defined conditions under which MRI can be
performed
C. Non-MR-conditional systems contain no electronics
D. MR Conditional systems never require device programming
Rationale: MR Conditional systems have specified conditions for MRI use. These
conditions must be satisfied during the examination. MR-conditional status does
not mean that the device can be scanned without restrictions.
Question 7
What is meant by a “legacy” pacemaker system in the MRI context?
A. A newly manufactured MR Conditional system
B. A temporary external pacemaker
C. A system that is not labeled as MR Conditional
D. A pacemaker with no implanted leads
*Rationale: A legacy or non-MR-conditional system is one that does not have
MR-conditional labeling for the relevant configuration. Contemporary evidence
, indicates that MRI may sometimes be performed in such patients under
specialized protocols, but this requires appropriate risk assessment and
safeguards. *
Question 8
Which statement best describes current evidence regarding MRI in patients with
non-MR-conditional pacemakers?
A. MRI is automatically safe at every field strength
B. MRI is never possible under any circumstances
C. Only extremity MRI can ever be considered
D. MRI may be performed in selected patients under appropriate protocols at
experienced centers
*Rationale: Contemporary evidence supports MRI in selected patients with non-
MR-conditional devices when appropriate protocols are followed. The 2024
SCMR consensus describes evidence for carefully controlled MRI, including 1.5-T
examinations, in patients with legacy devices. *
Question 9
What is an important first step when a patient reports having a pacemaker but
does not know its model?
A. Assume it is MR Conditional
B. Proceed with MRI if the patient feels well
C. Obtain reliable device identification before determining MRI eligibility
D. Remove the pacemaker before imaging
Rationale: Reliable device identification is necessary before determining MRI
eligibility. Device records, implant documentation, device interrogation,
radiographic identification, or other appropriate methods may be used according
to institutional procedures.
Question 10
