Falls Flashcards

1
Q

When should you investigate a fall

A

> 2 in 6 months

Admit and evaluate for a treatable cause

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2
Q

How do you manage syncope / elderly person found on floor

A

History + collateral
Examination - postural BP, focussed neurological and CVS
Assess cognition and capacity - 4AT / MMSE
12 lead ECG
Bloods - FBC, U+E, CRP, BM, VBG
CXR / urine dip
Assess red flags
Any physical injury - X-ray
CT for anyone >65 / anti-coagulant within 8 hours
Drug review
Further tests

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3
Q

How do you manage falls

A
Treat cause
CGA 
Strength and balance training = physio
Home hazard intervention / falls alarm- OT
Medication review
Cardiac pacing if necessary
Anddress and treat osteoporosis
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4
Q

What are the complications of immobility

A

Physical

  • Muscle wasting
  • Pressure sore
  • DVT
  • Constipation / incontinence
  • Hypothermia
  • Pneumonia
  • Osteoporosis

Psychological

  • Depression
  • Loss of confidence

Social
-Isolation

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5
Q

What are the RF for falls (often multifactorial)

A
Previous Hx = most predictive 
Age >80 
Frailty 
Muscle weakness / sarcopenia 
Impaired mobility - PMR / OA
Poor nutrition 
Weight loss 
Polypharmacy 
Intrinsic / extrinsic / situaitional
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6
Q

What are intrinsic factors

A
Gait and balance
Vertigo
Syncope
Chronic disease
- MSK e.g. arthritis / deformity so examine 
- Neuropathy from B12 / DM / alcohol 
- Parkinson's causing tremor / weakness 
Acute illness
Cognitive disorder
Visual 
- Cataract / glaucoma / macular degeneration = very common 
VitD / B12 deficinecy 
- Proprioception / weakness / neuropathy??
Metabolic disturbances
- Hypo or hyperglycaemia 
- AKI so U+E important
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7
Q

What are extrinsic factors

A
Footwear
Weather
ENvironmental hazard - OT 
Impaired ADL
Social isolation 
Use of assistive device
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8
Q

What are situational factors

A

Medication
Alcohol
Incontience / urgency

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9
Q

What medication is involved with increased risk of falls

A
Drugs that cause postural hypo 
Anti-hypertensive - ACEI / BB / nitrates 
Anti-cholinergic
Diuretics
L-dopa 
Other mechanism 
Sedatives
Benzodiazepine 
Anti-psychotic 
Hypoglycaemic meds
Opiates = confusion
Steroids can cause atrophy / affect sugar / infection
Anti-convulsants
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10
Q

What are drugs with anti-cholinergic properties

A
TCA - amitriptyline
Anti-emetic
Anti-muscarinic
Ranitidine 
Anti-psychotic - clozapine 
Furosemimde / warfarin = synergistic effect
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11
Q

What causes gait and balance problems

A

Postural stability
Vertigo
Syncope

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12
Q

What is postural stability determined by

A

Cerebral perfusion requires CO + vasomotor tone

Posture and balance (vision / somatosensory / vestbular system / muscle mass / central processing)

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13
Q

How do you asses gait and balance

A
Physio 
Sit-stand
Transfer
Get up and go <12s
Romberg test
Gait 
Static and dynamic standing 
FUnctional reach / timed walk / tandem walk
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14
Q

What are the causes of vertigo

A
Benign Paroxysmal Positional Vertigo
Labrynthitis
Acute ear infection 
Meniere's - rare
Migraine 
Cerebellar / brain stem stroke
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15
Q

What is BPPV

A

Most common vestibular disorder
Dix-Hallpike test to Dx
Epley to Rx and remove otoconia

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16
Q

What does Menieres have

A

Vertigo - repeated attacks
Tinnitus
Hearing loss

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17
Q

What is labrynthitis

A

Inner ear infection

HEARING LOSS

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18
Q

What is syncope

A

Self limited LOC due to global cerebral hypoperfusion
Leads to loss of postural tone + fall
Rapid with rapid recovery

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19
Q

Is syncope common

A

Very common cause of falls

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20
Q

What is the underlying mechanism of syncope

A
Neurally mediated
Cardiac
Orthostatic
Cerebrovascular
Seizure
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21
Q

What are the neurally mediated reflex causes of syncope

A

Primary = dehydration, standing, missed meal
Vaso-vagal -= most common cause (vagus nerve stimulated causing dilatation and hyper perfusion)
Carotid sinus hypersensitivity
Situational - haemorrhage / cough / GI stimulation / exercise

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22
Q

What do you do for vasovagal

A

If Dx certain = no further IV

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23
Q

What causes orthostatic

A

Cerebral hypoperfusion from lying-standing
Autonomic - Parkinson / neuropathy / MSA / DM
Volume depletion - blood / diarrhoea / Addison
Drugs
Sepsis - hypotension and collapse

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24
Q

What cardiac arrythmia cause falls

A
Sinus node - brady ./ tachy
AV conduction / heart block
Paroxysmal supraventrcular tachy (SVT)
Long QT
Brugada
Implanted device
Drug 

May not be persistent so might not pick up on ECG which is why Holter is important

25
What structural cardiac disease can cause falls
``` Valve e.g. AS IHD Acute MI Obstructive cardiomyopathy Pericardial disease / tamponade PE Subclavian steal Dissection ```
26
What are red flag indicators for cardiac disease
``` Exertional syncope or supine FH sudden death HF Recent MI New SOB Murmur Presence of ehart disease Palpitation Abnormal ECG ```
27
What are abnormal ECG signs
Bradycardia Long or short QT T wav einversion
28
What are cerebrovascular causes
Stroke / TIA - hemiparesis | Subclavian steal
29
What is important in history ALWAYS GET COLLATERAL
``` When, where, why, previous falls RF for falls Before - Any Sx e.g. dizzy Any trigger / concurrent illness - why do they think During Recovery quick or slow - vasovagal quick Sx - LOC / dizzy / vertigo / amnesia / headache or injury / vomit / After - any long lie Alcohol DM Thick each system Cardiac - SOB or palpitation or pain Neuro - Weakness - Seizure ``` Background - How many falls last 6 month ``` PMH DH SH - ADL / carers / independence - Smoking / alcohol FH sudden cardiac death ```
30
What is important to examine
``` Vital signs / NEWS ALWAYS document fluid status Lying and standing BP CVS / chest Neuro - Asymmetry - Power / tone - Cerebellar - Gait - Balance MSK Vision / hearing Abdo exam Feet exam for neuropathy / DM AMTS Injuries - X-Ray / CT ```
31
When would you do a CT
>65 + fall or on anti-coagulant = within 8 hours Risk of subdural Diff criteria if younger
32
What further tests can be done
``` Postural BP + CT = main Cardiac evaluation ECHO EEG MRI Cardiac stress Holter test for unknown - 24 hour cardiac monitor to pick up arrythmia Tilt table test Asses gait / balance - clinic ```
33
When would you do tilt table test
No cardaic cause or cardiac disease but defo not cause Possibly exercise induced See if change in position or HR causes
34
How do you Dx carotid sinus sensitivty
Carotid sinus massage (massage internal carotid) | If +Ve i.e. 3s block = hypersensitivity
35
What do you do for unexplained fall in <60
Holter
36
What do you do for unexplained fall in >60
Carotid sinus massage If +ve = hypersensitvity If -ve = holter
37
How do you differentiate between seizure and syncope
``` Seizure has 1+ of Bitten tongue Head turning No memory of abnormal behaviouro Unusual posture Prolonged limb - jerk Fast tonic clonic fall May be rigid CYanosis Confused after / prolonged post-octal Prodromal deja vu / aura ```
38
What is suggesive of syncope
``` Prodromal vision / N+V / sweat / tinnitus / light-headed - abolished if sit dwon Trigger Prolonged standing precipitates Slow fall Bradycardia Lumpness Return of consciousness quick and no post-octal Secondary anoxic seizure is possbile ```
39
What does acute illness do to cause fall
Limited cerebral reserve Hypoxia = impaired balance Infection / dehydration Often delerium on top
40
What cognitive impairment cause falls
Dementia Deleirum Depression
41
How does cognition cause falls
``` Impaired judgement Abnormal gait Visual - spacial perception Can't recognise hazard Immobility ```
42
What are 4 important drug
Anti-hypertensive Diuretic Benzodiazepine . anxiolytic Anti-cholinergic
43
If a person says they dont remember falling what do you write
Found on floor
44
What is interlinked with falls
Immoblity Immbolity = sarcopenia Falls = loss of confidence / injury / immbolity
45
What is sarcopenia
Low muscle mass Degenerative loss of muscle mass Associated with frailty
46
What causes sarcopenia
``` DM Elderly Chronic disease Lack of use Inflammation Nutritional deficinecy Endocrine causes ```
47
What does rehab look at
Impairment - due to strctural / functional change e.g. hemiparesis due to infarct Activity restriction - relearn skills / SLT / neuropsychology Participation restriction - modify environment to not restrict Set goals and tackle all 3
48
What will cause rapid decline
Cardiac - MI / arrythmia / hypersensitivity Brain - haemorrhage ./ tumour Sepsis Poisin - new drug?
49
87 admitted with fall, confused and on the floor | Trimethoprim by GP
``` History Check for injury Assess cognition with 4AT and capaciy CT ECG Bloods Drug review ```
50
80 with fall New analgesia Known epileptic Very confused and off legs
``` Postural BP Urine dip 4AT ECG Bloods CXR / urine if +Ve Drug review ```
51
What is the differential
Drug induced hyponatramia UTI Cancer / ulcer = GI bleed = anaemia = fall
52
What is importnat to look for
Delerium Subdural haemorrhage Hip fracture Dehydration
53
Outcome after fall
``` Injury - haemorrhage / fracture Rhabdomyolysis = AKI Pneumonia Immobility Loss of confidence Carer stress Social isolation Terminal deline ```
54
Why is Hx important
Differentiate between vertigo / dizzy / syncope
55
When do you do lying and standing BP
Important to do to look for postural drop | Not if unwell as will be dehydrated / unable to stand
56
Likely causes
Probably BP | If no BP meds think Addison and do cortisol
57
What are further tests to do in falls
``` CK if long lie hbA1c Haematenincs - b12, folate, ferritn Malabsorption screen e.g. coeliac if anaemia Vit D ```
58
What should elderly patient get after fall
``` FRAX score calculated Bone screen - Vit D, Ca, phosphate, PTH, ALP - Mg may be important - Myeloma screen ```