Lecture 11 Holistic Theme - How and Why Older People Get Sick Flashcards
How many over 85 expected by 2026?
2.4 million
Whta is frailty?
The loss of physiological reserve causing increased vulnerability to poor health outcomes.
Changes in CNS with age?
neuronal loss
cochlear degradation
lens rigidity and opacification
anterior horn and dorsal column cell loss
Changes in respiratory system with age?
reduced lung elasticity
increased chest wall rigidity
V/Q mismatch
reduced cough action
Changes in cardiovascular system with age?
reduced maximum HR
dilation of aorta
reduced elasticity of vessels and number of pacing monocytes in SAN
Changes in gastrointestinal system with age?
reduced motility
Changes in renal system with age?
loss of nephrons
reduced glomerular filtration rate and tubular function
Changes in endocrine system with age?
deterioration in pancreatic beta-cell function
What is postural hypotension?
A fall in systolic BP of =>20mmHg and/or a fall in diastolic BP of =>10mmHg from lying to standing.
What are the causes of postural hypotension?
ageing
hypovolaemia
medication like diuretics and anti-hypertensives
autonomic dysfunction
How can you manage postural hypertension?
stop medications
lifestyle factors like adequate fluid intake and standing up slowly
stockings
fludrocortisone
Describe fractured neck of femur.
Common
High mortality and can occur with minor trauma in the elderly as bone density decreases with age.
What is the presentation of a fractured neck of femur?
usually after a fall
painful
shortened and externally rotated leg
What is the investigations for fractured neck of femur?
X-Ray
sometimes CT
What is the management for fractured neck of femur?
analgesia
surgery like a hip replacement
What are the clinical consequences of CNS ageing?
delirium
hearing loss
presbyopia
cataract
muscle wasting
risk of falling increases
What are the clinical consequences of respiratory system ageing?
reduced vital capacity
increased residual volume
reduced oxygen saturation
What are the clinical consequences of cardiovascular system ageing?
reduced exercise tolerance
widened pule pressure
increased risk of postural hypertension
What are the clinical consequences of gastrointestinal system ageing?
constipation
What are the clinical consequences of renal system ageing?
impaired fluid balance
increased risk of dehydration
impaired drug excretion
What are the clinical consequences of endocrine system ageing?
increased risk of impaired glucose tolerance
What is poly pharmacy?
defined as 5 or more medications taken at a time.
research shows a strong relationship between poly pharmacy and negative clinical consequences.
What % of older adults take one or more medications that are not necessary?
50%
Why are elderly people at risk of under nutrition?
basal metabolic rate is reduced and energy requirements are reduced.