Seizures try again Flashcards

(42 cards)

1
Q

What NT do NMDA receptors respond to

A

Glutamate
Glycine

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2
Q

Mg2+ must be dislodged before what channel can open

A

NMDA receptor

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3
Q

an open NMDA channel results in influx of what

A

Na+
Ca2+

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4
Q

an open NMDA channel results in efflux of what

A

K+

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5
Q

activation of NMDA receptor leads to depolarization or hyperpolarization

A

depolarization

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6
Q

Activation of AMPA receptor leads to influx of

A

Na+

variable Ca2+

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7
Q

activation of AMPA receptor leads to efflux of

A

K+

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8
Q

post synaptic kainate receptor leads to excitation or inhibition

A

excitation

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9
Q

pre synaptic kainate receptor leads to excitation or inhibition

A

inhibition

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10
Q

is GABA-A a postsynaptic receptor or presynaptic receptor

A

postsynaptic receptor

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11
Q

binding of GABA-A leads to influx of

A

Cl-

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12
Q

GABA-A has IPSP —

A

-70 mV

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13
Q

What med binds to GABA-A receptor

A

BZD

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14
Q

what type of receptor is GABA-B

A

metabotropic receptor

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15
Q

activation of presynaptic GABA-B receptor leads to

A

decreased Ca2+ influx

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16
Q

activation of postsynaptic GABA-B receptor leads to

A

increased K+ efflux

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17
Q

GABA-B has IPSP —

18
Q

between GABA-A and GABA-B which has more hyperpolarization

19
Q

a stimulus causes what type of change to a sodium channel

A

conformational change

20
Q

what is the fast response in voltage gated channels

A

sodium influx

21
Q

sodium influx leads to

A

depolarization

22
Q

K+ efflux leads to

A

hyperpolarization

23
Q

most pharmacotherapy for seizure is directed at regulating the

A

voltage gated ion channels

24
Q

prolong the inactivation phase of Na+ channels

A

Na+ channel blockers

25
prolong the efflux of potassium
K+ channel activators
26
in seizure we have too much of what NT
glutamate
27
in seizures we have too little of what NT
GABA
28
what electrolyte disturbances can cause seizures
hypocalcemia hypomagnesemia hyponatremia
29
in early phases of status epilepticus, you are able to maintain what type of metabolism
aerobic metabolism
30
what causes hypoglycemia in status epilepticus
insulin secretion > available glucose stores
31
is the sympathetic system or parasympathetic system activated in status epilepticus
parasympathetic
32
what type of stroke has a high risk of seizure
multi-infarct
33
patients who develop seizure two weeks post stroke are more likely to develop epilepsy due to
glial scarring
34
where is the reticular activating system located
brainstem
35
what maintains consciousness, alertness, and arousal
reticular activating system
36
what type of connections to the autonomic NS help control breathing and heart rate in reticular activating system
efferent
37
what is the worst GCS score
3
38
what is the best GCS score
15
39
GCS tests for
best eye response best verbal response best motor response
40
13 or higher GCS score
mild brain injury
41
9-12 GCS score
moderate brain injury
42
8 or less GCS score
severe brain injury