Brain Attack (Stroke) - Unit 3 Flashcards

1
Q

What is a stroke?

A

It’s a cut off of blood supply to a part of the brain.

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2
Q

What are the two types of strokes?

A

Ischemic and Hemmorhagic

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3
Q

Strokes - higher in whites than blacks. T/F?

A

FALSE - Higher in blacks than whites.

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4
Q

Strokes kill almost ____ americans each year.

A

130,000

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5
Q

Stroke - leading cause of long-term disability. T/F?

A

True

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6
Q

Stroke care - Time lost = brain lost. T/F?

A

True

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7
Q

There is a high chance in reoccurrence of a stroke right after it has happened. T/F?

A

True

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8
Q

What does FAST stand for?

A

FACE.
ARMS.
SPEECH.
TIME.

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9
Q

What are some stroke risk factors that cannot be controlled?

A

Increasing age, gender (more women than men, especially after menopause), heredity and race, prior stroke, genetics.

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10
Q

What are some modifiable risk factors?

A

High blood pressure, cardiac disease (A-Fib?), lipids, diabetes, tobacco use, illegal drug use, life style factors

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11
Q

Stroke exam - worst headache ever?

A

Yes!

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12
Q

What are some diagnostic tools for stroke?

A

CT Scan with or without contrast (first stop on the diagnostic train!),
CTA, Mri, carotid doppler, EEG, EKG, ECHO, etc.

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13
Q

What is a TIA?

A

Transient Cerebral Ischemia - it’s a mini stroke that usually goes away after 24 hours.

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14
Q

What does a TIA signal?

A

A very high change of impending stroke.

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15
Q

Is there permanent damage with a TIA?

A

Nope!

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16
Q

What are two types of Ischemic Strokes?

A

Thrombotic and Embolic

17
Q

Thrombotic Stroke - def
When does it typically happen?
Risk factors?

A

This is when a blood clot cuts off supply to the brain - it’s a thrombus. It typically happens during sleep.
Risk factors are large vessels, HTN

18
Q

Embolic Stroke - def
What’s the onset?
Risk factors?

A

This is when a clot or fragment breaks loose, say from the heart, and travels to the brain.
It has a very quick onset.
Risk factors include endocarditis, A-Fib.

19
Q

What is the ischemic cascade?

A

This is a series of biochemical reactions in the brain after ischemia is found. Like, no atp? –> anaerobic –> lactic acid, etc.

20
Q

What are the major interventions for Ischemic Stroke?

A

We want to reestablish flow/rescue the ISCHEMIC PENUMBA

21
Q

What is the Ischemic Penumbra?

A

Ok, so when someone has an ischemic stroke, there’s like a ball that forms around the tissue. The outer layer of the ball is dead, but for the next 3-6 hours, the inside of the ball is alive. After that period, the inside dies as well. We want to save as much as we can.

22
Q

What drugs do we give for an ischemic stroke?

A
Antiplatelet therapy (Aspirin - given right away), Plavix)
or Thrombolytic Therapy (TPA)
23
Q

TPA - What is it used for? What’s important to know about it?

A

It’s for a block and it breaks the clot up. There’s a lot you have to cover with it - it is not for everyone (especially people with high BP, seizures, etc.) Also, it can be given only up to 3 hours after surgery. So, if the person wakes up with a stroke, they can’t get TPA because we don’t know about the timing.

24
Q

Are there surgical options for the prevention of stroke?

A

There’s a carotid ultrasound and carotid endarterectomy, which is taking the plaque out of the artery.!

25
Q

With a carotid endarterectomy, what is recovery like?

A

well since we’ve messed with their carotids, the baro/chemo receptors might get all out of whack so they may have some BP/HR problems. Staying overnight in a hospital tends to help this.

26
Q

What are the three types of hemorrhagic stroke? Caused by or extension of…

A

Intracerebral Hemorrhage (ICH), caused by hypertension, cocaine, etc.

Intraventricular Hemorrhage (IVH), which is an extension of an ICH. This is not good.

Subarachnoid Hemorrhage (SAD) - caused by a ruptured aneurysm.

27
Q

What is an aneurysm?

A

It’s a blood vessel that burst.

28
Q

What are some common areas for an aneurysm?

A

The circle of willis/middle cerebral.

29
Q

Once an aneurysm bleeds, there’s a 30-40% chance of death. T/F?

A

True

30
Q

What’s a vasospasm in regards to an aneurysm?

A

Rebleeding/rupturing (Nimotop can help this!)

31
Q

How can we manage an aneurysm?

A

Interventional radiology/coiling

32
Q

With an aneurysm, is maintaining an equal I/O important?

A

yes

33
Q

What is coiling?

A

This is when they put a coil - like this metal stuff - into an aneurysm. It blocks blood from coming!

34
Q

Stroke scoring system - >20 = what?

A

BAD

35
Q

What do we do in an assessment for stroke?

A

ABC’s, Level of consciousness, BP, symptom onset, correlate deficit with vascular distribution, area of brain, etc.

36
Q

What’s part of the clinical picture for stroke management?

A

Focused neurological examination, ABCD (Airway, Breathing, Circulation, Disability), IV access, frequently monitor patient’s vitals (BP is super important), noromothermia, normal glycemic control, fluid resuscitation, imaging, evaluation for thrombolytic therapy, maintain a good airway, prevent secondary brain injury, etc.