FMIS 105 final review Question and
answer correctly solved 2025/2026
What are the imaging purposes of utilizing EKG in MRI environment? - correct answer ✔2. Monitoring
heart motion patterns to control motion effects, 3. Minimizing blood flow effect on imaging, 4. Nullifying
pulsation on image acquisition
Which patient groups are mandated to be monitored with physiologic monitoring devices? - correct
answer ✔High risk patients
What do the terms gating and triggering imply? - correct answer ✔Different ways of monitoring
mechanisms
What is used for cardiac monitoring? - correct answer ✔Peripheral gating and EKG
What is the amount of oxygen associated with hemoglobin? - correct answer ✔98.5%
What does a low absorption of lights emitted by diodes in pulse oximeters indicate? - correct answer
✔More detection
What happens when there is high vessel caliber in pulse oximetry? - correct answer ✔Less penetration
of lights emitted by diode
What does desaturated hemoglobin absorb? - correct answer ✔Red light
What is a crucial variable to measure in sedated patients? - correct answer ✔Oxygen saturation
, Have hard-wire cables been used to monitor sedated patients during MRI procedures with intermittent
success and safety concerns? - correct answer ✔True
Do all different types of pulse oximeters tend to work accurately and constantly during the operation of
the MR system regardless of any existing field? - correct answer ✔False
Do fiber optic (FO) pulse oximeters operate without interference by the electromagnetic fields? - correct
answer ✔True
What are the factors affecting pulse oximeter accuracy and function? - correct answer ✔ALL OF THE
ABOVE- Nail varnish certain dark colors, poor perfusion, carbon monoxide
How does smoking affect the amount of oxygen reaching tissues and pulse oximeter reading results? -
correct answer ✔Decrease, false
What initiates MR data acquisition in prospective triggering? - correct answer ✔Detection of a desired
physiologic event (an R-wave, peripheral pulse, or specified level of inspiration)
True or False: Retrospective gating requires certain triggering event to initiate scanning in MRI - correct
answer ✔False
Does Belt and bellows Respiratory Compensation (RC) require hardware and post scan reconstruction
method by software reorder collected data for outcome of imaging? - correct answer ✔True
What does the Navigator echo method of Respiratory Compensation require? - correct answer
✔Software
What is the magnetic property of oxygen? - correct answer ✔Paramagnetic
answer correctly solved 2025/2026
What are the imaging purposes of utilizing EKG in MRI environment? - correct answer ✔2. Monitoring
heart motion patterns to control motion effects, 3. Minimizing blood flow effect on imaging, 4. Nullifying
pulsation on image acquisition
Which patient groups are mandated to be monitored with physiologic monitoring devices? - correct
answer ✔High risk patients
What do the terms gating and triggering imply? - correct answer ✔Different ways of monitoring
mechanisms
What is used for cardiac monitoring? - correct answer ✔Peripheral gating and EKG
What is the amount of oxygen associated with hemoglobin? - correct answer ✔98.5%
What does a low absorption of lights emitted by diodes in pulse oximeters indicate? - correct answer
✔More detection
What happens when there is high vessel caliber in pulse oximetry? - correct answer ✔Less penetration
of lights emitted by diode
What does desaturated hemoglobin absorb? - correct answer ✔Red light
What is a crucial variable to measure in sedated patients? - correct answer ✔Oxygen saturation
, Have hard-wire cables been used to monitor sedated patients during MRI procedures with intermittent
success and safety concerns? - correct answer ✔True
Do all different types of pulse oximeters tend to work accurately and constantly during the operation of
the MR system regardless of any existing field? - correct answer ✔False
Do fiber optic (FO) pulse oximeters operate without interference by the electromagnetic fields? - correct
answer ✔True
What are the factors affecting pulse oximeter accuracy and function? - correct answer ✔ALL OF THE
ABOVE- Nail varnish certain dark colors, poor perfusion, carbon monoxide
How does smoking affect the amount of oxygen reaching tissues and pulse oximeter reading results? -
correct answer ✔Decrease, false
What initiates MR data acquisition in prospective triggering? - correct answer ✔Detection of a desired
physiologic event (an R-wave, peripheral pulse, or specified level of inspiration)
True or False: Retrospective gating requires certain triggering event to initiate scanning in MRI - correct
answer ✔False
Does Belt and bellows Respiratory Compensation (RC) require hardware and post scan reconstruction
method by software reorder collected data for outcome of imaging? - correct answer ✔True
What does the Navigator echo method of Respiratory Compensation require? - correct answer
✔Software
What is the magnetic property of oxygen? - correct answer ✔Paramagnetic
