FMIS 105 FINAL REVIEW QUESTIONS &
ANSWERS RATED 100% CORRECT!!
What are the imaging purposes of utilizing EKG in MRI environment? 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? Answer - High risk patients
What do the terms gating and triggering imply? Answer - Different ways of
monitoring mechanisms
What is used for cardiac monitoring? Answer - Peripheral gating and EKG
What is the amount of oxygen associated with hemoglobin? Answer - 98.5%
What does a low absorption of lights emitted by diodes in pulse oximeters
indicate? Answer - More detection
What happens when there is high vessel caliber in pulse oximetry? Answer -
Less penetration of lights emitted by diode
What does desaturated hemoglobin absorb? Answer - Red light
What is a crucial variable to measure in sedated patients? Answer - Oxygen
saturation
, Have hard-wire cables been used to monitor sedated patients during MRI
procedures with intermittent success and safety concerns? 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? Answer
- False
Do fiber optic (FO) pulse oximeters operate without interference by the
electromagnetic fields? Answer - True
What are the factors affecting pulse oximeter accuracy and function? 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? Answer - Decrease, false
What initiates MR data acquisition in prospective triggering? 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 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? Answer - True
ANSWERS RATED 100% CORRECT!!
What are the imaging purposes of utilizing EKG in MRI environment? 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? Answer - High risk patients
What do the terms gating and triggering imply? Answer - Different ways of
monitoring mechanisms
What is used for cardiac monitoring? Answer - Peripheral gating and EKG
What is the amount of oxygen associated with hemoglobin? Answer - 98.5%
What does a low absorption of lights emitted by diodes in pulse oximeters
indicate? Answer - More detection
What happens when there is high vessel caliber in pulse oximetry? Answer -
Less penetration of lights emitted by diode
What does desaturated hemoglobin absorb? Answer - Red light
What is a crucial variable to measure in sedated patients? Answer - Oxygen
saturation
, Have hard-wire cables been used to monitor sedated patients during MRI
procedures with intermittent success and safety concerns? 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? Answer
- False
Do fiber optic (FO) pulse oximeters operate without interference by the
electromagnetic fields? Answer - True
What are the factors affecting pulse oximeter accuracy and function? 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? Answer - Decrease, false
What initiates MR data acquisition in prospective triggering? 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 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? Answer - True
