Sleep Studies

Question 1

EEG wave frequencies:

Alert and awake

Answer 1

Beta ( > 13 Hz)

Question 2

EEG wave frequencies:

Drowsy with eyes closed

Answer 2

Alpha (8-13 Hz)

Question 3

EEG wave frequencies:

N1, N2, REM

Answer 3

Theta (4-7 Hz)

Question 4

EEG Wave frequencies:

N3

Answer 4

Delta (< 4 Hz)

Question 5

Two waveforms indicative of N2

Answer 5

K-complex and sleep spindles

Question 6

Waveform indicative of N3

Answer 6

Delta wave

Question 7

Waveform indicative of REM

Answer 7

Sawtooth waves

Question 8

Apnea is defined as:

Answer 8

decrease in thermal sensor amplitude by > 90% of baseline for > 10 seconds

Question 9

Hypopnea is defined as

Answer 9

Decrease in nasal pressure by > 30% for > 10 seconds with >4% drop in O2 sat

Question 10

Periodic limb movements are defined as

Answer 10

> 4 consecutive leg movements lasting about .5-10 sec each

Question 11

Period of time considered diagnostic of excessive daytime sleepiness during MSLT

Answer 11

< 8 minutes

Question 12

How many SOREMPs needed to diagnosed narcolepsy

Answer 12

> /= 2