8/28/2013

8/28/2013

Answers:

REM sleep makes up ---% of a typical night's sleep.
A) 5% 
B) 15% 
C) 25% 
D) 50% 
E) 65%

25% of sleep is typically in the REM phase.

How long does a typical sleep cycle last? How many sleep cycles per night does an average adult have?

3-4 sleep cycles per night, each cycle last 90-120 minutes.

MC Question:

What stage of sleep is associated with K complexes?

A) Stage I 

B) Stage II 

C) Stage III 

D) Stage IV 

E) REM

Free Response Question:
What is the definition of apnea in an adult? In a child?

Quick Facts:
-Apnea Hypopnea index (AHI) = # of apneas and hypopneas per hr of sleep time (min 2 hrs)
-Controversial, does not reflect absolute # of episodes, duration or distribution of events.
-OSA = AHI > or equal to 5 events/h.
-5-15 = mild
-15-30 = moderate
- >30 = severe