Case 5 Flashcards

1
Q

Give an example of a thrombolytic drug, why it is used and what stroke type it cannot be used for?

A

Tissue plasminogen activator (tPA), given intravenously to break up clots and restore blood flow, should not be given in the case of hemaorrhagic strokes.

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2
Q

What is mechanical thromboectomy?

A

The clot is physically removed, usually used in cases where tPA hasn’t been effective.

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3
Q

What is the NIH stroke assessment scale?

A

Evalutes neurological status of acute stroke patients, helps predict lesion size. 11 items, each scoring between 0-4. Overall 0-4 indicate no stroke, 1-4 minor, 5-15 moderate, 16-20 moderate to severe, 21-24 severe.

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4
Q

What is generalised anxiety disorder (GAD)?

A

Ongoing anxiety and worry about events or thoughts that are excessive.

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5
Q

Prevelence of GAD?

A

1-5%, more common in men, onset most common in 20s.

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6
Q

What can cause GAD?

A

Genetic factor, long-term substance abuse or alcohol use, major life changes.

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7
Q

What has GAD been linked to?

A

Disrupted functional connectivity of the amygdala.

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8
Q

How does sensory information enter the amygdala?

A

Basolateral complex

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9
Q

What does the basolateral complex do in the amygdala?

A

Processes sensory-related fear memories and communicates their threat importance.

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10
Q

What are the two GABA receptors?

A

GABAa and GABAb.

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11
Q

What is the GABAa receptor made up of?

A

A trans-membrane, ligand-gated ion channel receptor, made up of 5 sub-units.

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12
Q

What happens when GABA binds to a receptor?

A

Binds to a binding pocket between the alpha and beta subunit, causing a Cl- influx into the neuron, leading to hyperpolarisation and decreased chance of action potential.

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