REGISTERED SLEEP TECHNOLOGIST
TEST PRACTICE 2 WITH VERIFIED
ANSWERS
What pis pthe ptime pconstant? p- pcorrect panswers p-The pamount pof ptime pfor pa
psignal pto pfall pto p37% pof pthe poriginal pcalibration pamplitude
2) pwhat pfilter pwould pbe pused pto padjust pthe prise ptime pof pa psignal? p- pcorrect
panswers p-the pHFF
the phigh pfrequency pfilter psignal pis pused pto padjust pthe prise ptime pof pa psignal. pThe
phigher pthe pfilter pis pset, pthe pfaster pthe psignal pwave pwill prise.
Low pFrequency pFilter p- pcorrect panswers p--High pPass pFilter
-Allows phigher pfrequencies pto ppass punchanged pwhile plower pfrequencies pare
pattenuated
-Higher pfilter pvalue pthe pmore plower pfrequency pwaves pare pattenuated
-Can pbe pused pto premoved prespiratory pand pswear psway partifact
-Caution: pThis pfilter pcan palso pattenuate pdesired pfrequencies psuch pas pSWS
, High pFrequency pFilter p- pcorrect panswers p--Low pPass pFilter
-Let pslower pwaves pthrough pand pattenuates phigher pfrequencies p
-Used pto pset phigh pfrequency precording plimits
-Can pbe pset pto pallow precording pof ponly pslower psignals
-Eliminates pmuscle partifact por pexternal pelectrical partifact pin pEEG pchannels
-Caution: pCan palso pattenuate pdesired phigh pfrequencies psuch pas parousals
What pis pthe pdifference pbetween pSpO2 pand pSaO2? p- pcorrect panswers p-SpO2 pis
pthe pmeasurement pof poxygen psaturation pby pthe pnon-invasive pmethod pof pa ppulse
poximeter.
SaO2 pis pthe pmeasurement pof poxygen psaturation pby pthe pinvasive pmethod pof
pusing pa pblood psample psuch pas pan parterial pblood pgas panalysis.
They pboth pmeasure pthe pamount pof phemoglobin pin pthe ppatient's pblood pthat pis
psaturated pwith poxygen, pbut pSaO2 pis pmore paccurate
SpO2 pstands pfor pox psaturation pmeasure pby ppulse pox, pSaO2 pstands pfor poxygen
psaturation pas pmeasured pby parterial pblood pgas
5)If pthe ptotal pcircumference pof pa phead pis p58cm, pwhat pis pthe pdistance pbetween
pM1 pand pO1? p- pcorrect panswers p-29cm
6)Using pthe p10-20 psystem, pthe pc4 plead pis plocated pwhat ppercentage pof pthe ptotal
pcircumference p(58cm) p- pcorrect panswers p-40%
7)Where pis pthe pO1 plead plocated pin prelation pto pthe pT3 plead? p
a. pLeft pand pbehind, p25% pof pthe ptotal pcircumference pof pthe phead.
b. pRight pand pbehind, p25% pof pthe ptotal pcircumference pof pthe phead. p
c. pLeft pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead. p
d. pRight pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead p- pcorrect
panswers p-c. pLeft pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead.
9) pIn ppolysomnography, psensitivity pis pgenerally pmeasured pin p- pcorrect panswers p-
uV/mm
10) pWhat pis pthe psensitivity psetting pfor pthe pEEG pin pa ppolysomnogram? p- pcorrect
panswers p-7uv
11) pPeriodic plimb pmovements pin psleep pare pdefined pas p- pcorrect panswers p-at
pleast p4 pmovements, pbetween p5 pand p90 pseconds papart, pand pbetween p0.5 pand
p5 pseconds pin pduration pfor peach pmovement
12. pIf pa ppatient phas pOSA, pwhich pstage pof pstage pmay pbe pincreased p- pcorrect
panswers p-Stage p1
TEST PRACTICE 2 WITH VERIFIED
ANSWERS
What pis pthe ptime pconstant? p- pcorrect panswers p-The pamount pof ptime pfor pa
psignal pto pfall pto p37% pof pthe poriginal pcalibration pamplitude
2) pwhat pfilter pwould pbe pused pto padjust pthe prise ptime pof pa psignal? p- pcorrect
panswers p-the pHFF
the phigh pfrequency pfilter psignal pis pused pto padjust pthe prise ptime pof pa psignal. pThe
phigher pthe pfilter pis pset, pthe pfaster pthe psignal pwave pwill prise.
Low pFrequency pFilter p- pcorrect panswers p--High pPass pFilter
-Allows phigher pfrequencies pto ppass punchanged pwhile plower pfrequencies pare
pattenuated
-Higher pfilter pvalue pthe pmore plower pfrequency pwaves pare pattenuated
-Can pbe pused pto premoved prespiratory pand pswear psway partifact
-Caution: pThis pfilter pcan palso pattenuate pdesired pfrequencies psuch pas pSWS
, High pFrequency pFilter p- pcorrect panswers p--Low pPass pFilter
-Let pslower pwaves pthrough pand pattenuates phigher pfrequencies p
-Used pto pset phigh pfrequency precording plimits
-Can pbe pset pto pallow precording pof ponly pslower psignals
-Eliminates pmuscle partifact por pexternal pelectrical partifact pin pEEG pchannels
-Caution: pCan palso pattenuate pdesired phigh pfrequencies psuch pas parousals
What pis pthe pdifference pbetween pSpO2 pand pSaO2? p- pcorrect panswers p-SpO2 pis
pthe pmeasurement pof poxygen psaturation pby pthe pnon-invasive pmethod pof pa ppulse
poximeter.
SaO2 pis pthe pmeasurement pof poxygen psaturation pby pthe pinvasive pmethod pof
pusing pa pblood psample psuch pas pan parterial pblood pgas panalysis.
They pboth pmeasure pthe pamount pof phemoglobin pin pthe ppatient's pblood pthat pis
psaturated pwith poxygen, pbut pSaO2 pis pmore paccurate
SpO2 pstands pfor pox psaturation pmeasure pby ppulse pox, pSaO2 pstands pfor poxygen
psaturation pas pmeasured pby parterial pblood pgas
5)If pthe ptotal pcircumference pof pa phead pis p58cm, pwhat pis pthe pdistance pbetween
pM1 pand pO1? p- pcorrect panswers p-29cm
6)Using pthe p10-20 psystem, pthe pc4 plead pis plocated pwhat ppercentage pof pthe ptotal
pcircumference p(58cm) p- pcorrect panswers p-40%
7)Where pis pthe pO1 plead plocated pin prelation pto pthe pT3 plead? p
a. pLeft pand pbehind, p25% pof pthe ptotal pcircumference pof pthe phead.
b. pRight pand pbehind, p25% pof pthe ptotal pcircumference pof pthe phead. p
c. pLeft pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead. p
d. pRight pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead p- pcorrect
panswers p-c. pLeft pand pbehind, p20% pof pthe ptotal pcircumference pof pthe phead.
9) pIn ppolysomnography, psensitivity pis pgenerally pmeasured pin p- pcorrect panswers p-
uV/mm
10) pWhat pis pthe psensitivity psetting pfor pthe pEEG pin pa ppolysomnogram? p- pcorrect
panswers p-7uv
11) pPeriodic plimb pmovements pin psleep pare pdefined pas p- pcorrect panswers p-at
pleast p4 pmovements, pbetween p5 pand p90 pseconds papart, pand pbetween p0.5 pand
p5 pseconds pin pduration pfor peach pmovement
12. pIf pa ppatient phas pOSA, pwhich pstage pof pstage pmay pbe pincreased p- pcorrect
panswers p-Stage p1
