Sleep And Related Breathing Events Aasm Scoring Rules

Question 1

Answer 1

Question 2

**spindles and k complexes are mainly found in…. (N1, N2, N3 ore REM)

Answer 2

N2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

What are the 3 types of neurological channels for sleep stage identification

Answer 6

Electroencephalogram, eye movements, chin muscle tone

Question 7

What are the 5 pnuemological PSG channels for respiratory analysis?

Answer 7

Patient flow, breathing effort, oxygen desaturation, snore microphone, body position

Question 8

What are the 5 pnuemological PSG channels for respiratory analysis?

Answer 8

Patient flow, breathing effort, oxygen desaturation, snore microphone, body position

Question 9

What is an alpha rhythm and what sleep stage is it found in?

Answer 9

EEG pattern consisting of eye activity 8-13hz recorded over the occipital region associated with eye closure and attenuating with eye opening, wakefulness

Question 10

Slow eye movements can be associated with what sleep stage?

Answer 10

N1

Question 11

Vertex sharp waves (v waves) can be associated with what sleep stage?

Answer 11

N1

Question 12

One or more k complexes unassociated with arousals, and one or more sleep spindles can be associated with what sleep stage?

Answer 12

N2

Question 13

Slow wave (delta wave) activity can be associated with what sleep stage

Answer 13

N3

Question 14

Low amplitude, mixed frequency EEG without K complexes or sleep spindles, and low chin emg tone for majority of epoch can be associated with what sleep stage?

Answer 14

REM

Question 15

**in order to score a respiratory event an apnea, what two things have to happen?

Answer 15

1) There is a drop in the peak signal excursion by greater than 90% of pre event baseline using an oronasal thermal sensor

2) the duration of the 90% drop is greater than 10 seconds

Question 16

** which apnea is this? (Obstructive/Central/Mixed) meets apnea criteria and is associated with continued or increased inspiratory effort through the entire period of absent airflow

Answer 16

Obstructive

Question 17

** which apnea is this? (Obstructive/Central/Mixed) meets apnea criteria and is associated with absent effort through the entire period of absent airflow

Answer 17

Central

Question 18

** which apnea is this? (Obstructive/Central/Mixed) meets apnea criteria and is associated with absent effort in the initial portion of the event, followed by resumption of the inspiratory effort in the second portion of the event

Answer 18

Mixed

Question 19

For HYPOPNEA, what 3 criteria have to be met?

Answer 19

1) peak signal excursions drop by more than 30% of pre event baseline

2) 30% drop happens for more than 10 seconds

3) there is a greater than 3% oxygen desaturation from pre event baseline or is associated with arousal