Chapter33-Disorders Of Sleep

Question 1

What is sleep apnea

Answer 1

Repeated episodes of Complete cessation of air flow for 10 seconds or longer

Question 2

Central sleep apnea means

Answer 2

No respiratory effort

Question 3

Central sleep apnea may be caused by ?

Answer 3

Stroke
Chf
High altitude hypoxemia

Question 4

What is mixed sleep apnea

Answer 4

Cass followed by osa

Question 5

Obstructive sleep apnea occurs when

Answer 5

There is respiratory effort but an obstruction prevents airflow

Question 6

What is hypopnea

Answer 6

A decrease in breathing without a complete cessation of airflow

Question 7

A 30 percent decrease in airflow and a 4 percent SpO2 decrease is called

Answer 7

Hypopnea

Question 8

What is the most common type of sleep apnea

Answer 8

Osa

Question 9

What is the primary cause of osa

Answer 9

Unstable pharyngeal airway

Question 10

What are adverse consequences of sleep apnea

Answer 10

Hypertension
Right ventricular hypertrophy/failure
Mi
Stroke
Insulin resistance

Question 11

What bmi is osa likely

Answer 11

Greater than 28

Question 12

What is overlap syndrome

Answer 12

Osa and copd

Question 13

When does the worst desaturation occur

Answer 13

During rem sleep

Question 14

What are symptoms of sleep apnea

Answer 14

Excessive daytime sleepiness
Gasping, snoring or choking at night
Morning headaches

Question 15

What is the gold standard for diagnosis of osa

Answer 15

Level 1 sleep study

Question 16

What lifestyle factors should be considered to improve sleep apnea

Answer 16

Weight loss
Limiting alcohol
Limiting sedatives and hypnotics
Avoiding sleep deprivation

Question 17

What is the first line therapy for osa

Answer 17

Cpap

Question 18

What cpap levels are usually needed for osa

Answer 18

7.5 to 12.5

Question 19

Side effects of cpap

Answer 19

Claustrophobia
Nasal congestion
Skin irritation
Nasal dryness

Question 20

What features of sleep studies should be analyzed and reported

Answer 20

Ahi 
Arousal index
Sleep stave distribution
Frequency of desat
Mean SpO2

Question 21

Mild ahi is

Answer 21

5-15 per hour

Question 22

Moderate ahi is?

Answer 22

15-30

Question 23

Severe ahi is?

Answer 23

Greater than30