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Psg 1 > Exan 5 > Flashcards

Exan 5 Flashcards

1
Q

High pass filters is also know as ?

A

Low frequency filter LFF

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2
Q

Increase this will allow faster waves to enter the channel, while decreasing will filter out fast waves?

A

High frequency filters HFF
Increase 15 (35) to 35 (100) will allow faster waves to enter the channel
While decreasing will filter out fast waves 35 (100) to 15 (35)

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3
Q

Decrease this will allow slower waves to enter the channel, while increasing will filter out these slow waves?

A

LFF low frequency filter

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4
Q

As LFF decreases what happens to time constant?

A

Increase

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5
Q

The number of micro volts per millimeter that the channel will display the waves is known as?

A

Sensitivity

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6
Q

What happened to the wave if decrease the sensitivity?

A

Wave appear taller

Ex-EKG 100 to 35

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7
Q

Adjusting the sensitivity will adjust the actual amplitude of the wave (true or false).

A

False

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8
Q

The sensitivity of EMG is ?

A. 20 uv/ mm

B. 2uv/mm

C. 7 uv/mm

D. 35 uv/mm

A

2uv

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9
Q

The sensitivity of EKG is?

A. 2 uv/ mm

B. 7 uv/ mm

C. 35 uv/ mm

D. 20 uv/ mm

A

D. 20 uv/ mm

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10
Q

Montages are a collection of what ?

A

Derivations

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11
Q

What is the purpose of signal calibration?

A

A. Proper functioning if all amplifier is demonstrated

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12
Q

True or false in a mechanical baseline the power is turned On

A

False. ( it’s turned OFF)

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13
Q

True or false in a electrical baseline the power is turned ON

A

True

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14
Q

Low pass filter is also know as?

A

Hff high frequency filters

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15
Q

The initial recording equipment calibration for Polysomnography should show

A. 50uv/. Signal introduction to all channels regardless of filters settings

B. The individual channel settings set for the physiologic parameter to be monitored

C. The same EEG activity in all channels

D. The filters ( high, low and 60 HZ) and sensitivity for each channel to be the same

A

The filters (high, low and 60 HZ ) the sensitivity for each channel to be the same

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16
Q

During Psg , you might expect sedative medications to:

A

EEG activity to show increased Alpha and background fast activity

17
Q

An alternating EEG pattern seen in full term sleeping ( NREM) infants consisting of both high and low voltage activity us termed

A. Trace discontinu

B. Delta sleep

C. Trace alternant

D. Sawtooth waves

A

C. Trace alternant

18
Q

Short time constants should be used when recording which if the following physiologic variables.

A. EEG

B. EOG

C. EMG

D. Respirations

A

C. EMG

19
Q

Out of phase signal in the loc A2 and roc A1 derivations. Indicate

A. .cerebral activity

B. Artifact

C. Eye movement

D. Wakefulness

A

C. Eye move moment

20
Q

With the right outer canthus eye lead (ROC) positioned 1cm lateral to and 1cm above the outer canthus, eye opening will result in the (ROC) becoming

A. Negatively charged

B. Positively charged

C. Bipolar

D. Referential

A

A. Negatively charged

21
Q

Sleep transients recorded with a C 3 - A1 derivation rather than C3 A2 derivation will result in

a. Lower amplitude sleep spindle

B. Higher amplitude k complex

C. Faster frequency alpha

D. Slower frequency delta

A

Lower amplitude sleep spindles

22
Q

LFF referred to as high pass filter

They allow?

It filters ?

A

They allow high frequencies to pass through

Filters low frequencies out

23
Q

HFF referred to as low pass

They allow ?

It filters?

A

They allow low frequencies to pass through

Filters high frequencies out

24
Q

Typical filters are set slightly beyond the bandwidth range

To record EEG within?

The LFF is set to ?

The HFF is set to ?

This ensures full?

While ?

A

To record EEG within 0.5 – 25 HZ

LFF is set to 0.3 HZ

HFF is set to 30 or 35HZ

This ensues full signal resolution

While attenuating under durable frequencies outside the selected range

25
Q

Good titration

RDI

A

RDI.

26
Q

Adequate titration

RDI reduced by

Meets the grading criteria for_______ or. ______with

A

RDI reduce by 75% from baseline

Meets the grading criteria for Optimal or. Good with NO Supine REM data

27
Q

Adult > 12yrs

Recommend titration

A

2 obstructive Apneas

3 Hypopneas

5 Reras

3 min of Loud unambiguous snoring

28
Q

Child recommendation for Max pressure cpap

A

1 obstrution Apnea

1 hypopnea

3 Rera’s

1 min of loud unambiquiois snoring

29
Q

Adult

Recommendation Max Pressure for Titration.
CPAP
IPAP
Indication: for BIPAP

A

12yrs to Adult

CPAP 20 cmH2O

IPAP 30cmH2O

Indication for BIPAP, at Max Pressure

Pt not fixed,
Pt intolerant
Pt COPD

30
Q

Scoring arousal

After______ arousal it has to be followed by ______ of sleep

A

After 3sec arousal it has to be followed by 10 sec of sleep

31
Q

Scoring arousal

_____ stable sleep precluding

It is possible to _______ an arousal in

epoch scored as _________

A

10 sec Stable Sleep Preciding

It is possible to score an arousal in epoch scored as wake

32
Q

Open eyes

A
32
Q

Child recommendation Max Pressure
For titration

CPAP
IPAP
Indication: for BIPAP

A

CPAP 15 cmH2O

IPAP. 20 cmH2O

Indication for BIPAP at Max Pressure

Pt not fixed

Pt intolerant

Pt COPD

32
Q

Rem requires _______ _______ ____ EMG Increase at least ____ duration to score arousal

A

Rem requires concurrent sub mental EMG increase at least 1sec duration to score arousal

33
Q

Open eyes

A

Psg 1 (29 decks)

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