Things I got Wrong Pt.2 Flashcards
(186 cards)
What is first line in the treatment of hallucinations in patients with PD and symptoms of psychosis?
Quetiapine
What is first line in the treatment of agitation in patients with PD?
Benzodiazepines
Which cancers commonly metastasise to the brain?
Breast, lung and melanoma, colon, kidney and thyroid
Which drugs can worsen the symptoms of MG?
Beta-blockers, several antibiotics and antimalarials, Lithium
What are the side effects of neostigmine/pyridostigmine?
increased salivation, lacrimation, sweats, vomiting, excessive pupillary constriction, diarrhoea
What are the signs of corticobasal degeneration?
- decline in movement, speech, memory, and swallowing
- stiffness, shakiness, jerky movements, difficulty with balance, and difficulty controlling the muscles of the face and mouth
- Alien limb phenomenon refers toinvoluntary motor activity of a limb in conjunction with the feeling of estrangement from that limb.
What are the signs of progressive supranuclear palsy?
Impaired vertical gaze
What are the signs of multiple system atrophy?
- Neurons of multiple systems in the brain degenerate, affecting more than just the basal ganglia
- Results in Parkinson’s symptoms plus autonomic dysfunction (postural hypotension, constipation, abnormal sweating, sexual dysfunction) and cerebellar dysfunction (ataxia)
What is the definition of a stroke vs TIA?
- TIA: a transient episode of neurologic dysfunction due to the focal brain, spinal cord, or retinal ischemia without acute infarction or tissue injury. (<24h)
- Stroke: an episode of neurological dysfunction caused by focal cerebral, spinal, or retinal cell ischaemia, with evidence of acute infarction. (>24h)
- Ischaemia = hypoxia, infarct = complete loss of blood flow resulting in cellular death
What would an MRI show in Huntington’s disease?
MRI shows atrophy of the caudate nucleus and putamen
What does a positive Rhomberg’s test indicate?
An issue with the dorsal column medial lemniscus - the patient has lost proprioception, so they rely on visual stimuli to maintain balance (negative in cerebellar syndromes)
What are some signs of cerebellar syndrome, and what can cause it?
DANISH
Dysdiadochokinesia
Ataxia
Nystagmus
Intention tremor
Slurred speech
Hypotonia
Negative Rhomberg’s
Can be caused by carbamazepine or phenytoin
What are the side effects of valproate?
VALPROATE
Vomiting, alopecia, liver toxicity, pancreatitis/pancytopenia, retained fats, oedema, appetite increase, tremor/teratogenic
What are the side effects of carbamazepine?
Carbamazepine - CARBA MEAN - confusion, ataxia, blurred vision, aplastic anaemia, bone marrow suppression, eosinophilia, agranulocytosis, neutropenia. Also an enzyme inducer.
What is the management of mild MS?
- Betaferon - injection site reactions, flu like symptoms, mild intermittent lymphopenia, mild to moderate rises in liver enzymes, decrease after a few months - first line!!
- Glatiramer acetate
What is the management of moderate MS?
- Fingolimod, dimethyl fumarate
What is the management of severe MS?
- Nataluzimab - modified lymphocyte trafficking - prevents then crossing the BBB and causing damage
- Ocrelizumab (CD20) - depletes lymphocytes
- Stem cell transplantation
What medications should children with minimal change disease be started on?
Steroids
Penicillin V (prevents sepsis and peritonitis)
Pneumococcal vaccines
What antiemetic can cause acute dystonic reactions, and what is it’s mechanism of action?
Metaclopromide - antidopaminergic
What are the signs of juvenile myoclonic epilepsy?
Myoclonic jerks (often described as clumsiness in the morning)
Absence seizures
Generalised tonic clonic seizures
Commonly in the morning, when sleep deprived, in an otherwise health teenager
What is the management of postural hypotension?
Conservative
- Ensuring they are hydrated
- Compression stockings
- Increased salt in the diet
- Foot exercises before standing
- Rise slowly from the chair before standing
- Medication review (nitrates, diuretics, anticholinergics can all trigger it)
Medical
- Fludrocortisone
- Midodrine
What medication is associated with an increase in mortality for dementia patients?
Antipsychotics
What would be seen on a head CT of a patient with Alzheimer’s?
Widespread cerebral atrophy mainly involving the cortex and hippocampus
What are they types of MND?
Amylotrophic lateral sclerosis (UMN and LMN)
Bulbar palsy (cranial nerves 9-12)
Primary lateral sclerosis (UMN)
Progressive muscular atrophy (LMN)