STROKE Flashcards

1
Q

What is stroke

A

Sudden global or focal neurological
deficit resulting from spontaneous hemorrhage or infarction of the
central nervous system, with objective evidence of an infarction or hemorrhage, irrespective of the duration of clinical symptoms

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2
Q

……….. or …………….. is required to make the diagnosis and exclude other intracranial lesions that could present similarly

A

CT or
MRI scan

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3
Q

What is TIA

A

is a transient
episode of neurologic dysfunction caused by focal brain, spinal cord, or retinal ischemia.

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4
Q

There is no objective evidence of acute infarction in the affected region of brain or retina in TIA . T/F

A

T

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5
Q

Causes of cerebral infarction

A

Thrombosis
Embolism

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5
Q

Important risk factors of stroke in children

A

sickle cell disease
cyanotic heart disease

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6
Q

Risk factors of stroke

A

hypertension
diabetes
dyslipidemia
atrial fibrillation
smoking

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7
Q

Causes of stroke

A

Cerebral infarction
Intracerebral hemorrhage
Subarachnoid hemorrhage

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8
Q

Symptoms of stroke

A

Weakness of one side of the body including the face
Inability to rise up from a sitting or lying position
Sudden fall/collapse
Loss of speech
Loss of vision
Unconsciousness in some patients
Seizures

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9
Q

Severe headache and/or neck pain is seen in ……………..

A

subarachnoid hemorrhage

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10
Q

What is hemianopia

A

loss of one-half of visual field

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10
Q

Neck stiffness is seen in …………..

A

Subarachnoid hemorrhage

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11
Q

Signs of stroke

A

Paralysis of a limb
Facial paralysis
Initial flaccidity of limbs, but later spasticity and exaggerated reflexes
Hemianopia
Hemi-anaesthesia
Extensor plantar response
Dysarthria/dysphasia
Neck stiffness (in subarachnoid haemorrhage

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12
Q

What is Hemi-anaesthesia

A

loss of sensation of one-half of body

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13
Q

Treatment objectives in stroke

A

To limit the area of brain damage
To protect patients from the dangers of unconsciousness and immobility
To prevent aspiration
To treat the underlying cause if possible
To identify and manage modifiable risk factors
To institute measures to improve functional recovery To support and rehabilitate patients who survive with residual disability
To minimize adverse effects of drug therapy

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14
Q

Investigations in stroke

A

FBC, ESR
Blood glucose
Serum lipid profile
BUE/Cr
Uric acid
ECG
CT scan/MRI of the head
Chest X-ray

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14
Q

Non-pharmacological management of stroke

A
  1. Monitoring
  2. Establish adequate airway in unconscious patients
  3. Swallowing test in an upright position
  4. Insert nasogastric tube
    5.Nurse in the lateral position with suctioning where necessary
  5. Elevate head of bed
  6. Prevent pressure sores by regular turning (every 2 hours) in bed
  7. Maintain adequate hydration
  8. Keep patient clean and dry by frequent use of bedpan/urine pot, diapers, condom catheter as required. Urethral catheter should be used only if absolutely necessary
  9. Start physiotherapy as soon as practicable
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15
Q

How often should a stroke patient’s vital signs and neurological signs be monitores

A

Every 4 hours

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16
Q

Volume of water used for the swallow test

A

10 to 15ml

17
Q

Purpose of nasogastric tube

A

Feeding and Nutrition

18
Q

Which patients will require a nasogastric tube and why

A

unconscious patients or those with swallowing difficulties to prevent aspiration

19
Q

At what angle should the stroke patients head be elevated to and why

A

30 degrees to reduce intracranial pressure

20
Q

Pharmacological treatment of infarctive stroke and TIA

A

Aspirin
and
Atorvastatin or Rosuvastatin

21
Q
A
22
Q
A
22
Q
A
23
Q
A
24
Q
A
24
Q
A
25
Q
A
26
Q

Dose of rosuvastatin increased

A

Adults
20-40 mg daily
Children
Not recommended

26
Q

Should oral metformin be given in acute stroke

A

No

26
Q

RBS target in stroke

A

4 to 10 mmol/l

26
Q

Dose of aspirin

A

Aspirin, oral,
Adults
300 mg stat.
Then
75 mg daily
Children
> 16 years; same as adult dose
< 16 years; not recommended

26
Q

Dose of atorvastatin

A

Adults
40-80 mg daily
Children
Not recommended

27
Q

Blood pressure management in stroke

A

If > 180/110 mmHg aim for gradual reduction
of no more than 20% over 24 hours.

27
Q

Dose of hemorrhagic

A

Mannitol, IV,
Adults
0.5-1 g/kg 6 hourly (up to 2 g/kg per dose)
Children
1 month-18 years; 0.5-1.5 g/kg
Or 2.5-7.5 ml/kg of 20% solution

27
Q

Should SL nifedipine be used in BP management in stroke patients

A

No

27
Q

Which fluids should be avoided in stroke

A

Dextrose 5% or 10% unless patient is hypoglycaemic

27
Q

Which fluids should be used for hydration in stroke

A

Normal saline
Dextrose saline

28
Q

Therapies to reduce ICP in stroke

A

Nurse at 30 degrees head up
IV mannitol
Dexamethasone

29
Q

Treatment for aspiration pneumonia in stroke

A

IV Amoxiclav and IV metronidazole for first 48 hours then review

30
Q

Algorithm for stroke management

A

History and
examination
Investigations
Hydration
Stress ulcer prophylaxis
Glucose control
Pyrexia
BP management
Treatment of infarcts
Atrial fibrillation
Mobilisation of patients
Aspiration pneumonia
DVT and PE prophylaxis
Seizures
Change in consciousness level
Increased ICP
High cholesterol

31
Q

Factors that can cause change in consciousness level in stroke

A

cerebral oedema
hypoglycaemia
metabolic
drugs

32
Q

Treatment of infarcts in stroke

A

aspirin 300 mg stat as soon as infarct identified via (oral/
NG) if no contraindications. Reduce dose to 75 mg daily after 1
week, and consider further anti-platelet medication