Exam 2 Flashcards
All of the following areas must be monitored during routine Polysomnography except:
A. C 3 - A2
B. Mentalist / submentalis
C. ECG
D. F3-A2
F3-A2
During instrumentation calibration, one pen deflection lagging behind the others requires correction of the
A. Mechanical
B. Time axis
C. Electrical baseline
D. Pen damping
B. Time axis
REM periods become shorter and less intense throughout the sleep period
A. True
B. False
B. False ( not shorter but longer)
Sleep staging in infants can be defined as
A. Indeterminate, active REM sleep, quiet sleep
B. Intermediate sleep, active REM sleep, delta sleep
C. Indeterminate sleep, wake, quiet sleep
D. Intermediate active REM sleep, quiet sleep
A. Indeterminate sleep, active REM sleep, quiet sleep
The following are hallmarks if stage 1 except
A. Slow rolling
B. Low voltage, mix frequency
C. Decrease in amount, amplitude, and frequency alpha activity
D. Rhythmic 12-14 hertz activity lasting > 0.5 seconds
D. Rhythmic 12-14 hertz activity lasting > 0.5 seconds
When scoring the MSLT, REM latency is defined as the
A. Time from sleep onset to the first epoch that can be scored as REM
B. Time from lights out to 3 consecutive epochs of REM
C. Time from lights out to the first epoch of REM
D. Elapsed time from eye closure to the first epoch that can be scored as REM
A. Time from sleep onset to the first epoch that can be scored as REM
Following MSLT s, a mean sleep latency of less than 5 min indicates
A. A pathological level of daytime sleepiness
B. Narcolepsy
C. Depression
D. A normal mean sleep latency
A. A pathological level of daytime sleepiness
Amplitude criteria for scoring of stage 3/4 sleep are influenced by
A. Electrode resistance
B.time constants
C. Interelectrode distances
D. All if the above
D. All if the above
Delta sleep also know as ?
N3 / N4
75uv amplitude
.2 - 5hz
The staging of REM sleep requires
A. Rapid eye movement occurring in bursts
B. Suppressed chin EMG
C. Desynchronized, relatively low voltage EEG activity
D. A coincidence of all of the above
D. A coincidence of all of the above
Movement time is scored when
B. 50% of the epoch contains movement artifact and epochs before and after are scored as sleep
An MSLT nap period during which no sleep is recorded would be scored as
A. 0 minutes in duration
B. 15 min in duration
C. 20 min in duration
D. None of the above
C. 20 min in duration
An epoch with 20% delta activity ( > 75 uv ) combined with relatively amplitude 7-10 HZ activity
A. Is termed alpha- delta sleep
B. May be seen in pt with fibrositis
C. Us frequently associated with subjectivity non-restorative sleep
D. All the above
D. All the above
Limb movements must include the following to qualify as PLMs
A. Four or more consecutive movements
B. Duration if three seconds minimum.
C. An associated arousal
D. All the above
A. Four or more consecutive movements
All of the following devices monitor airflow on a polysomnogram except:
A. Thermistors with electrical resistance changes as a function of temperature
B. Thermocouple that vary with temperature changes caused by expired air
C. A cannula measuring the CO 2 content of expired air
D. Inductive Plethysomnography utilizing a conductive wire
D. Inductive Plethysomnography utilizing a conductive wire
AHI hypopnea index
Mild
Mild > 5 events/hour
AHI > 5 events
Must have documented
1
2
3
4
1 eds excessive daytime sleepiness
2- htn hypertension
3- chf congestive heart failure
4- cva cerebral vascular accident
AHI moderate
> 15 events/ hour 15- 29
AHI Severe. >
> 30 events/hour
Titration Goal
AHI 90%
– eliminate scoringj
Arousal index
Pen blocking
Occurs when?
Gain set too high
To increase the waveform
What to do
Increase the gain
If sensitivity is increased the wave form
The waveform is shorter in height
If gain is increased the wave form is
The waveform is increased in height
Electro popping
Recognized by
Sharp positive or negative waves
High voltage deflection
No physiological artifact mostly caused by 60 HZ
