Diagnosis and Investigations Flashcards
What are the causes of falls?
DAME -
Drugs: Polypharmacy, anti-hypertensives, oral hypoglycemics, anticholinesterase inhibitors, opiates, sedatives
Ageing: Vision changes, Osteoarthritis, Cognitive decline, Gait abnormalities
Medical: Arrhythmias/heart problems, seizure, cataracts, hypotension, stroke, neuropathy, PD
Environmental: Home hazards, shoes, walking aids
What is vertigo?
A feeling of the room spinning around you
Suggests the problem is in the ear or brain
Differential diagnosis for vertigo?
Meniere's Disease Labyrinthitis BPPV Vestibular Schwannoma Vestibular Neuronitis Migraine MS Cerebellar Problem
What is BPPV?
Short spells lasting up to 2 mins of vertigo
Recur many times throughout the day
Triggers include head movements
Diagnosed using the Dix-Hallpike manouevre
Differential Diagnosis for dizziness?
Vertigo - see ddx vertigo
Presyncope
Unsteady
Psychogenic
What symptoms would someone having presyncope experience?
Light-headedness
Clammy/hot
Pale
Blurred vision
In general what does a patient mean when they say they are unsteady?
A general feeling of unsteadiness coming from the patients’ legs
Why would a patient experience psychogenic dizziness?
Fear of falling
Loss of confidence
Panic attacks or anxiety
Investigations of someone who is falling?
FBC, U&E, Bone Profile
ECG
TFT, B12, Folate
What are the risk factors for delirium?
Pain Dementia Hip fracture Immobility Dehydration or constipation Polypharmacy Unfamiliar environment Hypoxia Infection Sleep disturbance Lack of visual or hearing aids
What are the features of an essential tremor?
Bilateral
Familial
Worse on movement
Jaw tremor
Differential diagnosis for Parkinsonism?
Idiopathic PD Lewy Body Dementia Vascular Parkinsonism Multi System Atrophy Drug Induced Parkinsonism Normal Pressure Hydrocephalus Progressive Supranuclear Palsy Corticobasal Degneration
What is the key feature of idiopathic PD?
Asymmetry of clinical features
What is the key feature of lewy body dementia?
Marked cognitive impairment - presenting first
Visual hallucinations
Parkinsonism
What is the key feature of vascular Parkinsonism?
Vascular risk factors i.e. smoking, high blood pressure, high cholesterol
Predominant lower body signs