CPSGT AND RPSGT EXAM A (PART 1) QUESTIONS
AND ANSWERS
Display montages can be: - Answers - bipolar or referential.
Bipolar montage - Answers - displays the difference between two active electrodes.
Referential Montage - Answers - displays the difference between one active electrode
and one reference electrode and is typical of most PSG montages.
Though it is likely that individual lab protocols may use alternative sampling rates, the
AASM has recommended: - Answers - sampling rates for each type of signal being
acquired, helping to assure that the sampling rate is adequate to reproduce the signal.
Obstructive Sleep Apnea is resolved with: - Answers - CPAP (obstuctive apneas or
obstructive hypopneas).
A CPAP titration can start at: - Answers - a recommended 4cm H2O min and 20cm H20
max.
An upward titration in 1 cm H20 increments : - Answers - following each 5 minute period
should be continued until greater than 30 mins is observed without respiratory events.
For patients younger than 12 years of age, - Answers - the Academy recommends an
upward titration in 1 cm H2O
The recommended max CPAP for younger than 12 yrs old is: - Answers - 15 cm H2O.
What are the criteria that defines an apnea? - Answers - There is a thermal sensor
(PAP device flow) drop in 90% or more of the baseline and last at least 10 secs.
One of the measurements used in the 10-20 System is the: - Answers - Coronal
measurement (C3, CZ and C4), from preauricular to preauricular point.
10% up on the left is T3 electrode site and 20% up from T3 is C3 electrode site. 10 plus
20= 30%
Referencing all EEG signals to a common electrode: - Answers - typically Cz is the
common method of collection/recording.
The AASM published guidelines recommend that all scalp and eye electrodes: -
Answers - be at or below 5000 ohms.
AND ANSWERS
Display montages can be: - Answers - bipolar or referential.
Bipolar montage - Answers - displays the difference between two active electrodes.
Referential Montage - Answers - displays the difference between one active electrode
and one reference electrode and is typical of most PSG montages.
Though it is likely that individual lab protocols may use alternative sampling rates, the
AASM has recommended: - Answers - sampling rates for each type of signal being
acquired, helping to assure that the sampling rate is adequate to reproduce the signal.
Obstructive Sleep Apnea is resolved with: - Answers - CPAP (obstuctive apneas or
obstructive hypopneas).
A CPAP titration can start at: - Answers - a recommended 4cm H2O min and 20cm H20
max.
An upward titration in 1 cm H20 increments : - Answers - following each 5 minute period
should be continued until greater than 30 mins is observed without respiratory events.
For patients younger than 12 years of age, - Answers - the Academy recommends an
upward titration in 1 cm H2O
The recommended max CPAP for younger than 12 yrs old is: - Answers - 15 cm H2O.
What are the criteria that defines an apnea? - Answers - There is a thermal sensor
(PAP device flow) drop in 90% or more of the baseline and last at least 10 secs.
One of the measurements used in the 10-20 System is the: - Answers - Coronal
measurement (C3, CZ and C4), from preauricular to preauricular point.
10% up on the left is T3 electrode site and 20% up from T3 is C3 electrode site. 10 plus
20= 30%
Referencing all EEG signals to a common electrode: - Answers - typically Cz is the
common method of collection/recording.
The AASM published guidelines recommend that all scalp and eye electrodes: -
Answers - be at or below 5000 ohms.
