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FBN > EEG > Flashcards

EEG Flashcards

1
Q

what percentage of the UK suffer sleep disorders

A

25%

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2
Q

name some sleep disorders

A

narcolepsy
sleep apnoea
sleep walking
bedwetting

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3
Q

define transient, short term and long term insomnia

A

2-3 days

3 weeks

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4
Q

the 5 Ps treatment for insomnia

A 
Physiological ( decrease stress)
Psychological (relax )
Pharmalogical
Physical (decrease pain)
Psychiatric  (diagnosis)
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5
Q

what is synchronisation in sleep driven by

A

Reticular Activating System

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6
Q

alpha wave - eyes open means what

A

wave flat

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7
Q

Normal awake what are you waves like

A

dsynchronised - brain aroused by outside stimulation

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8
Q
  1. what type of waves is your deepest sleep

2. what is your brain doing

A

slow wave. highly synchronised, low freq bursts of high
muscular tone low
low cortical activity

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9
Q

what happens to your sleep throughout the night

A

start 1-4 then back up to REM as this continues your deepest sleep gets less deep (1-3, then 1-2)

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10
Q

pattern of your sleeping . REM/ non rem

A

1 hr NON- 20 mins REM - 90 min NON - 20 min REM - 90 min

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11
Q

what happens in your rem sleep

A

fast wave, increased HR increased RR, penis erect skm relaxed

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12
Q

changes in sleep pattern as you age?

A

rem decreases

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13
Q

Name 2 sleep promoting factors

A

IL-1 during illness

adenosine

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14
Q

effect of caffine on sleep

A

adenosine antag therefor decreases sleepyness

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15
Q
  1. which areas of the brain are involved in producing sleep

2. which neurotransmitters are used in each area

A
  1. hypothalams SCN - raphe nucleus and locus coeruleus - pons - thalamus - cerebral cortex
  2. RN 5HT. LC NA .Pons Ach
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16
Q

how is REM induced / stopped in sleep

A

pons Ach increases firing to thalamus causing REM

Raphe nucleus and locus coerules inhibit pons firing stopping REM

17
Q

which area in the hypothalamus stimulates sleep

A

preoptic area

18
Q

name 3things the hypothalamus releases related to sleep and what they stimulate

A

adenosine - stims sleep
orexin - stims wakefullness
histamine - stims drowsiness

19
Q

which hypnotics are best

A

benzodiasapines

20
Q

why should you not prescribe barbiturates for sleep

A

dependance, tolerance, hangovers, resp depression

21
Q

5 positives and 2 -ves to benzodiasapines as a hypnotic

A
  • high lethal dose, small affect on sleep pattern, dont induce enzymes, tolerance and dependance not as much as barbs, low SEs
  • hang overs and some dependance and withdrawal
22
Q

WHat are Z drugs

A

drugs that bing to BDZ comlpex on gaba - similar action to BDZ

23
Q

pros to Z drugs

A

short half life, pharmokinetics not altered by age, no change in REM, no rebound, no abuse potential

24
Q

what is flumazenil used for

A

BDZ overdose

FBN (33 decks)

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