Neurology Flashcards
CN3 lesion
Eye movement ‘down and out’
Ptosis and fixed dilated pupil with absent light reflex
Left homonymous hemianopia
Visual field defect to the left
Lesion of the right optic tract
Homonymous quadrantanopias
PITS
parietal inferior, temporal superior
Incongruous defects
Optic tract lesion
Congruous defects
Optic radiation lesion or occipital cortex
CN4 lesion
Defective downward gaze and vertical diplopia
CN6 palsy
Defective eye abduction and horizontal diplopia
Lorazepam TWICE?
Investigation for progressively worsening headache with impaired higher cognitive function
Urgent imaging required
Imaging to view demyelinating lesions
MRI with contrast
Management of brain abcess
IV 3rd generation cephalosporin + metronidazole
CN5 lesion
Loss of corneal reflex
What is hoover’s sign
Differentiates between organic and non-organic lower leg weakness (a sign of leg paresis)
What is Romberg’s test
Investigates the cause of ataxia (+ve = sensory)
What must you do before giving aspirin
Exclude a haemorrhagic stroke
Bitemporal hemianopia
upper quadrant defect > lower quadrant defect = inferior chiasmal compression, commonly a pituitary tumour
lower quadrant defect > upper quadrant defect = superior chiasmal compression, commonly a craniopharyngioma
What movements are spared in motor neurone disease
Eye movebments
Tetrad of neuroleptic malignant syndrome
Hyperthermia, muscle rigidity, autonomic instability, altered mental status
(often when started on anti-psychotic medication)
Describe the tremor seen in Parkinsons
Unilateral tremor that improves with voluntary movement
First step in the management of obese patients with idiopathic intracranial hypertension
Weight loss
Management of autonomic dysreflexia
Removal/control of the stimulus and treatment of any life-threatening hypertension and/or bradycardia
What anaesthetic agent is contraindicated in myasthenia gravia
Suxamethonium
Give 2 localising features of a temporal lobe seizure
Lip smacking
Post ictal dysphasia
(plucking of clothes)
Treatment of patients with raised ICP
IV mannitol
What nerve is affected if there is weakness of foot dorsiflexion and foot eversion
Common peroneal nerve
3 features of normal pressure hydrocephalus
Urinary incontinence
Gait abnormality
Dementia
Obese young female with headaches and blurred vision
Think idiopathic intracranial hypertension
Most common hereditary sensorimotor neuropathy
Charcot-Marie-Tooth Disease
Treatment of acute migraine
Treatment of migraine prophylaxis
Acute: Triptan + NSAID + paracetamol
Prophylaxis: Topiramate or propanolol
(propanolol preferred in women of childbearing age)
Investigation of choice for narcolepsy
Multiple sleep latency EEG
3 features of normal pressure hydrocephalus
Urinary incontinence + gait abnormality + dementia
1st line drug in the management of ocular myasthenia gravis
Pyridostigmine
3 drugs which exacerbate Parkinson’s
Cyclizine
Prochlorperazine (antihistamines)
Metoclopramide
Anti-emetic used in parkinsons
Domperidone
MOA of sodium valproate
Inhibition of the P450 system
What does myaesthenia gravis show on an EEG
A diminished response to repetitive stimulation
How would you treat a patient with an acute ischaemic stroke who present within 4.5 hours
A combination of thrombolysis and thrombectomy
What scale measures disability or dependence in ADL in stroke patients
The Barthel index
5 most common places for brain tumours to metastasise
Lung Breast Kidney Melanoma Colorectal cancers
Presentation of syringomyelia
Cape-like loss of pain and temperature sensation due to compression of the spinothalamic tract fibres decussating in the anterior white commissure of the spine
What is neuroleptic malignant syndrome and what is it treated with
Life threatening reaction that can occur in response to antipsychotic medication
Treated with bromocriptine (dopamine agonist)
MOA of pydridostigmine and what is it used for
Long acting acetylcholinesterase inhibitor that reduces the breakdown of acetylcholine in the neuromuscular junction
Temporarily improves the symptoms of mysesthenia gravis
Difficulty swallowing is a feature of what neurological condition
Myaesthenia Gravis
Myaesthenia Gravis VS Lambert Eaton
Same but lambert eaton with LUNG CANCER
GCS
Eye Very Much (want to die)
Eye = 4
Verbal = 5
Motor = 6
Head CT showing temporal lobe changes
Herpes simplex encephalitis
CT scan in meningitis
Often unremarkable
CT scan in HIV encephalitis
Changes to white matter and basal ganglia
Presentation of Creutzfeldt-Jakob disease
4 months of general neuro dysfunction
Time target for thrombolysis and thrombectomy
Thrombolysis: 4 hrs
Thrombectomy: 6 hrs
Management if a patient was not suitable for thrombolysis or thrombectomy
Aspirin
Painful third nerve palsy
Posterior communicating artery aneurysm
What medications are associated with idiopathic intracranial hypertension
tetracycline antibiotics isotretinoin contraceptives steroids levothyroxine lithium cimetidine
Diagnostic test for Guillain-Barre
Lumbar Puncture
Young person presenting with a stroke, what investigations must be done to rule out the cause
Thrombophilia and autoimmune screening
What is a holter analysis
Records the hearts rhythm
Most common complication following meningitis
Sensioneural hearing loss
First line treatment for parkinsons (newly diagnosed)
Levodopoa
4 features of progressive supranuclear palsy
Postural instability
Impairment of vertical gaze
Parkinsonism
Frontal lobe dysfunction
Hallmark of myasthenia gravis
Fatiguable painless muscle weakness that improves with rest
Tuberous sclerosis skin presentation
Roughened patches of skin over lumbar spine (shagreen patches)
Laughter followed by fall/collapse
Cataplexy
MRC scale
5: normal
4: against gravity and resistance
3: against gravity
2: gravity eliminated
1: flicker
0: nothing
Management of a medication overuse headache
Simple analgesia: stop
Opioid: withdraw gradually
Classic organism for guillian-barre
Campylobacter
5 features of wernicke’s encephalopathy
nystagmus (the most common ocular sign) ophthalmoplegia ataxia confusion, altered GCS peripheral sensory neuropathy
Wernicke vs Korsakoff
Amnesia and confabulation develop in korsakoff
What is Brown Sequard syndrome the result of
Lateral hemisection of the spinal cord
Frontal lobe seizure
Motor symptoms such as jerking of the limb
Parietal lobe seizure
Paraesthesia
Temporal lobe seizures
Automatisms and hallucinations
De-ja-vu and aura
Occipital lobe seizure
Visual disturbance
Brainstem seizure
Very rare and not well researched
Fracture with wrist in a flexed position with weakness to extension noted on examination
Left mid shaft humeral fracture
Cause of postural hypotension in a patient with parkinsons
The parkinsons
Characteristic of pseudoseizures
Gradual onset
Patient with Bell’s Palsy
No sign of improvement after 3 weeks
Refer urgently to ENT
How long can Bell’s palsy take to recover
12 months
3 features of broca’s dysphagia
speech no fluent, comprehension normal, repetition impaired
Smiths fracture with loss of thumb opposition
Median nerve