Exam 3

Question 1

Oxygen in sleep lab

Poses?

Dangers

Answer 1

Poses prolong physiologic consequences:

Prolong alveolar oxygen levels with oxygen toxicity

Dangers
highly flammable
Highly explosive

Question 2

Hypoxic drive ?

Predominate stimulus to?

Secondary drive associated with ?

Some chronic diseases cause ?

In pt sensitivity to _______ becomes______ and that _____ becomes the predominate stimulus to_______

Pt drive to breath can be diminished with _______

Answer 2

Carbon dioxide

Hypoxemia ( hypoxic drive)

Chronic hypercarbia ( hypercapnea ) ( elevated PaCO2)

Sensitivity to Carbon dioxide becomes
Blunted and that Hypoxia becomes the
Predominate stimulus to breath ( hypoxia the state of low oxygen levels

Their drive to breathCAN be diminished with the admin of oxygen

Question 3

EMG parameter
LFF
HFF
TC

EEG/EOG

LFF
HFF
TC

Answer 3

EMG
LFF 5
HFF 90-100 HZ
TC 0.03

EEG/EOG
LFF 0.3
HFF 35
TC 0.4

Question 4

Short time constant should be used when recording which of the following physiologic variable? 
A. EEG
B. EOG
C. EMG
D. Respirations

Answer 4

C. EMG

Question 5

When scoring an MSLT sleep onset is defined as the elapsed time from?

Answer 5

Lights out to the first epoch scored SLEEP

Question 6

Uvulpalatopharyngoplasty ( UPPP)

Is what?

Removes what?

Answer 6

Most common surgical procedure to treat OSA

Removal 
Portion of soft palate
Uvula
Tonsils
Limited wall if pharyngeal

Question 7

Hypoxia

Answer 7

Lack of oxygen

Question 8

BMI
Formula

Under wt
Healthy wt
Over wt
Obesity
Morbid obesity

Answer 8

Under wt

Question 9

Hyperventilation def

Answer 9

Abnormal fast - deep type breathing

Question 10

Hyperpnea-def

Answer 10

Abnormal increase both in rate and depth of respiration

Question 11

Hypopnea def

Answer 11

Abnormal decrease in both rate and depth of respiration

Question 12

84 when scoring an apnea/ hyponea event of short duration the tech may notice?

Answer 12

B. No evident desat

Question 13

82 Rem cycles are calculated?

Answer 13

C. From the end of one REM period to the beginning of the next

Question 14

80 A REM latency of _____ would be considered normal in an adult

Answer 14

90- 120 min

Question 15

68. Total sleep time is

Answer 15

Total of non REM + REM sleep time

Question 16

The percentage of stage REM is based on the

Answer 16

Total sleep time

Question 17

When scoring the PSG , the REM latency is generally calculated

Answer 17

B from sleep onset

Question 18

Scoring of an obstructive hypopnea maybe aided greatly by

Answer 18

A esophageal pressure measurements

B. IntercostalEMG recording

C. Diaphragmatic EMG

D. All of the above is the answer D

Question 19

72 sleep efficiency is

Answer 19

B. the ratio if total sleep time to time in bed

Question 20

73. The duration of an ape uv episode is calculated from the

Answer 20

B. End of exhalation to the beginning of the next inhalation

Question 21

74. Body movement s

Answer 21

Are discrete physiologic events, which can occur during stages or movement time

Question 22

75. The average number of Apneas and hypopnea. Per hr of sleep is th

Answer 22

D. RdI respiratory disturbance index

Question 23

76. The formula for calculation of the PLM arousal index is

Answer 23

A. The number of PLMs with arousal times60 by TST total sleep time

Question 24

77 the occurrences of multi k complex at the termination of an apnea without an accompanying EEG frequency shift

Answer 24

Is scored as an arousal if preceded by 10 sec of continuous stage 1 sleep

Question 25

78 the major goal for defining movement arousals is to

Answer 25

C. Signal the possibility of a stage chAnge

Question 26

79 sleep stage percentage maybe calculated by using

A. Total sleep time (dark time )

B. Total sleep time ( total non rem + total rem)

C. Sleep period time ( time from sleep onset to sleep offset including intervening arousals)

D any or all the of the above

Answer 26

D all the above

A . total recording time (dark time)

B. Total sleep time ( total non REM+ total REM

C sleep period time ( time from sleep onset to sleep offset including intervening arousals)

Question 27

92. Sleep spindles

A are 9-13 cps waveforms

B. Wax and wane in amplitude

C are at least .05 sec in duration

D. All of the above

Answer 27

D. All the above

Question 28

98. K complex

Answer 28

Have an initial negative deflection followed by a positive deflection