Sleep Stages Flashcards
Awake with eyes open?
Beta
Awake with eyes closed?
Alpha
Stage N1?
Theta
Stage N2?
Sleep spindles and K complexes
Stage N3?
Delta
REM?
Beta
Waves with highest frequency and lowest amplitude?
Beta
Waves with lowest frequency and highest amplitude?
Delta–slow wave sleep
When does bruxism (grinding teeth) occur?
N2 (Two for Teeth)
Stage with sleepwalking, night terrors and bedwetting?
N3–3 things happen in N3
Stage when erections occur?
REM
What NT is key for initiating sleep?
Serotonin (raphe nucleus)
Tx for enuresis?
Oral desmopressin acetate (DDAVP); preferred over imipramine due to latter’s AEs
How do you tx night terrors and sleepwalking?
BZDs
What NT is predominant in REM?
ACh
What NT reduces REM?
NE
What are the REM changes seen in depressed pts?
Increased REM early in sleep cycle, increased total REM sleep, decreased REM latency
What sleep wave mimics wakefulness?
REM