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Acute Medical Conditions > Stroke > Flashcards

Stroke Flashcards

(51 cards)

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1
Q

What are the different types of stroke?

A

Heamorrhagic (15%)
Ischaemic (85%) :
- thrombotic (57%)
- embolic (16%)

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2
Q

What can middle cerebral occlusion lead to?

A 
Contralateral hemiplegia
Contralateral hemisensory loss
Hemianopia
Aphasia
Neglect and dressing dyspraxia
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3
Q

What assessment do the nurses need to carry out if they suspect a pt has had a stroke?

A

ABCDE
Assessment of consciousness
Pupil size and reaction to light
Motor and sensory function

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4
Q

How do you determine if a pt need thrombolysis?

A

An urgent CT is required to determine type of stroke

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5
Q

What thrombolysis is given for ischaemic stroke?

A

If there are no contraindications, alteplase is given

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6
Q

What is the window of opportunity to administer thrombolysis?

A

3-4.5 hours from onset of stroke

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7
Q

Which pts are eligible for thrombolysis?

A

Pts with no intracerebral haemorrhage or other contraindications
Present within 3 hrs of known onset
Pts under 80 yrs if presenting within 3-4.5 hrs onset
Individual basis if between 3-6 hrs

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8
Q

How successful is thrombolysis?

A

Significantly reduces death and disability at 90 days

Effectiveness is greatest when given early

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9
Q

What do hyper-acute stroke units consist of?

A 
High quality stroke specialist nursing care
Critical care for enhanced monitoring
SALT
Dietician
Physio
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10
Q

What is the treatment for pts post thrombolysis?

A

High intensity nursing for 24 hrs
Bed rest 24 hrs
Eat and drink if swallow test passed
BP =

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11
Q

What should you do if a stroke pt deteriorates?

A

Contact the stroke team and rescan the pt

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12
Q

What respiratory assessment should be undertaken on stroke pts?

A

Regular monitor RR, pattern and effort of breathing

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13
Q

Why should you monitor stroke pts for signs of partial airway obstruction?

A

Transient obstruction is not uncommon during sleep

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14
Q

Why is it important to monitor for hypercapnia?

A

It can act as a potent cerebral vasodilator and will increase cerebral blood flow and ICP

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15
Q

What is the National Stroke Strategy (DH, 2007)

A

It is the framework for development of stroke services
16 quality markers including:
- recognising and acting upon suspected stroke
- long term care

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16
Q

How do you respiratory manage a stroke pt?

A

Change pts position
Encourage regular deep breathing
Encourage pt to cough

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17
Q

What are the two situations when a pt blood pressure would be pharmalogically lowered after the acute stage of a stroke?

A

Administration of thrombolysis

Hypertensive emergency

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18
Q

After a pt has had a intracerebral harmorrhage, when would their BP be reduced?

A

If SBP>180 mmHg

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19
Q

What is the usual BP for a pt post thrombolysis?

A

Must be

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20
Q

At what figure does the CPP need to be maintained at after a stroke?

A

> 70mmHg

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21
Q

What is important to remember about fluids and electrolytes for a stroke pt?

Study These Flashcards
A

Aim for normovolaemia and correct electrolytes
0.9% NaCl is fluid of choice
Avoid dextrose solutions in first 48 hrs

22
Q

At what temperature is a poor outcome likely in stroke pts?

Study These Flashcards
A

> 37.5 degrees

23
Q

What is the ideal blood glucose range for a stroke pt within the first 24-48 hrs?

24
Q

What is important to remember about neurological deterioration in stroke pts?

Study These Flashcards
A

It regularly occurs, can be subtle and insidious in onset

All pts are at risk

25
What are the causes of neurological deterioration in stroke pts?
Cerebral oedema Hydrocephalus Heamorrhagic transformation Stroke extension/recurrence
26
What are the early signs of raised IVP following stroke?
Increasing drowsiness, agitation and restlessness Increasing difficulty in achieving the same GCS results Slight but gradual deterioration in limb function or GCS
27
What is important to remember about stroke pts and seizures?
5% will have epileptic seizures | Most commonly focal but can have secondary generalisation
28
Which stroke pts are eligible to recurve anti platelet drugs?
TIA and ischaemic strokes unless there are clear contraindications The benefits outweigh the risks
29
What anti platelet drugs are given to stroke pts?
Aspirin 300 mg daily for 2 weeks the clopidogrel 75 mg
30
What are the functional impairments a pt suffered following a stroke?
``` Motor/sensory Communication Swallowing Continence Cognition Behaviour ```
31
What is the percentage of pts who are affected by dysphagia?
64-90% | Swallowing should therefore be screened within 4 hours
32
What happened if a stroke pt fails the swallow screening?
Refer to SALT Keep pt NBM NG feeding commenced within 24 hrs
33
What is the nurse responsible for for a stroke pts suffering from dysphagia?
Pts ongoing assessment Weight monitoring Providing assistance at mealtimes Management of alternative methods of feeding
34
What communication difficulties can a stroke pt suffer with?
Dysarthria - impaired motor speech production Receptive or expressive aphasia - impaired language skills resulting in difficulty in understanding or expressing language
35
What are some specific strategies to help a stroke pt with speech?
``` Allow plenty of time to formulate a response Closed questions Other means of communication Picture boards Encouragement and feedback ```
36
What does correct positioning and early mobilisation of a stroke pt prevent?
``` Skin breakdown Muscle spasticity Chest infections Shoulder pain DVTs ```
37
What is used to reduce the risk of DVTs in stroke pts?
IPC
38
What is important to remember about incontinence with stroke pts?
40-60% suffer urinary incontinence 30% suffer faecal incontinence It is often related to functional disability
39
What are the priorities for a stroke pt following the hyperacute phase of a stroke?
Individualised secondary stroke prevention management plan Implement an individualised rehab plan Prepare pt and family for discharge from acute services
40
What is important to remember about stroke recurrence risk?
26% within 5 yrs 39% within 10 yrs Risk is highest in first month following stroke Secondary prevention should be commenced asap
41
What are the modifiable risk factors of a stroke?
``` Hypertension Smoking High cholesterol Obesity Diet Diabetes Alcohol ```
42
What are the non-modifiable risk factors of a stroke?
Age Race Family history
43
Why are anti hypertensive drugs given to stroke pts?
Reduce the risk of future stroke | Reduce risk of long term disability and cognitive decline
44
What anti hypertensive drugs are given to stroke pts?
Initial therapy = calcium channel blockers or athiazide | ACE inhibitors added if needed
45
When are stroke pts treated for their cholesterol?
When their cholesterol is >3.5 mmols | Treatment commenced after hyper acute stage
46
When are anticoagulants given to a stroke pt?
Only used for caardiobolic ischaemic stroke pts who are at high risk of further stroke Commenced 14 days post stroke
47
What is important to remember about anticoagulants for stroke pts?
The risk of haemorrhage outweighs the benefits
48
When can stroke pts have a carotid endarterectomy?
Candidates have carotid imaging within 1 week and surgery within 2 weeks of stroke
49
Which stroke pts qualify as candidates for carotid endarterectomy?
Pts who are stable without severe neurological deficits following acute ischaemic stroke or TIA involving carotid artery territory
50
What are cognition impairments following a stroke?
``` Memory Executive functions Language Attention Perception ```
51
What are the nurses role in managing psychosocial aspects of a stroke?
Early involvement of family and friends in planning care pathways Help to develop skills or strategies that can be accessed to deal with difficult situations Prepare the pt for changes they face Listen and provide solutions

Acute Medical Conditions (18 decks)

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