SPECONLEC_S1_L3 - P2-P13 Flashcards
Global average life expectancy at 60 years
20 years
65-75 years:
“old geriatric population”
> 85 years:
○ aka “oldest old”
> 90 years:
nonagenarian
80s
Octogenarian
100s
Centenarian
↑ population =
↑ people with Sx
MUSCLE: The loss of muscle fibers and decrease fiber size in the elderly results in ___
loss of force per unit area
MUSCLE: Disproportionate loss of type ___ fibers
Disproportionate loss of type 2 fibers
T/F
Even if muscle fibers and fiber size decrease as we age, motor units are not affected
False (There’s also loss of motor units in aging)
attributable to an underlying disease; loss of both muscle and fat mass
Cachexia
loss of muscle mass and strength, increase in fat mass, and abdominal girth
Sarcopenia
part where the motor neuron meets the
muscle
motor unit
BONE: Insufficient load-bearing results to ___
Insufficient load-bearing -> demineralization
T/F: Changes in bone are affected by changes in excretory system, more significant in women after menopause
False (Affected by changes in endocrine system, more significant in women after menopause)
T/F: In Neurologic, there is a decrease in brain volume, frontal white matter loss, and decreased cerebral blood flow
False (Decreased brain volume, frontal **grey **matter loss, decreased cerebral bloodflow)
NEUROLOGIC CHANGES: Lens aging may lead to ___
cataracts
AGE-RELATED HEARING LOSS: INTRINSIC VS. EXTRINSIC
1. Noise exposure
2. Cochlear aging
3. Genetics
4. Ototoxic drugs
- Extrinsic
- Intrinsic
- Intrinsic
- Extrinsic
NEUROLOGIC CHANGES: Decline in vision due to ______
retinal aging
MHR decreases how many bpm per decade after age _ years
6-10 bpm per decade, 25 years
VO2max decreases how many percent per decade after age _ years
5-15%, 25 years
VO2max is the _
maximum oxygen consumption
↑ VO2max = _ endurance
↑
↓ VO2max = ↓ endurance → _ fatigue
↑
t or f there is increased arterial compliance among the geriatric
f, decreased
Arteries are not complying since they’re more _ →
(increase/decrease) in BP
stiff, increase
s the pressure exerted by the blood to the blood vessel
BP
Rush of blood into the blood vessel will cause the blood vessels to
___
blood vessels dilate to accommodate which avoids ↑ BP
If the arteries don’t accommodate in older pts, there’s _ in BP
increase
why is there increased SBP?
d/t loss of patency of arteries resulting in increased
pressure in the arteries
there will also be ventricular _ with impaired _ for cardiovascular
changes among the geria
left, hypertrophy, filling
there is also Decreased _ in the cardiovascular
beta-adrenergic receptor stimulation
response
t or f there is an increase in SA node automaticity in cardiovascular among
geriatric patients
f, decreased SA node automaticity
what node can produce its own action potential to stimulate the heart
SA node
Predicts 60 beats per minute
SA node
it’s not easy to excite the heart for geria since
_ is decreased
beta-adrenergic
Decreased myocytes lead to
muscle weakness
t or f Exercise-induced adaptations are increased among the
elderly
f, Exercise-induced adaptations are not as available to
elderly
t or f there will also be increased sensitivity to catecholamines & impaired
vasodilative responses
f, Decreased sensitivity to catecholamines & impaired
vasoconstrictive responses
Impaired vasoconstrictive responses: seen in the
LE
LE vessels need to contract continuously for
_ for the blood to circulate back to the heart
venous return
When the venous return is impaired & there is less
blood pumping back to the heart, this results to _
hypotension
_ can be worn by the patient to facilitate in venous return which
will lessen the chances of hypotensive episodes
Compressive stockings
IN pulmonary changes among geria, there will be
Impaired _ and _ mismatch
pulmonary gas exchange, V/Q
t or f Loss of elastic recoil and lung stiffening for geria pts
t
t or f decreased lung compliance and increased thoracic wall mobility
for geria pts
f, Increased lung compliance and
decreased thoracic wall mobility
t or f there is also Decreased strength of respiratory muscles
t
pulmonary changes Leads to increase in _ and _
residual volume, Functional Residual Capacity
is the air thats left thats not part
of the gas exchange
residual capacity
for GI, there will be appetite and energy intake
decreased
Decreased appetite and energy intake leads to _
malnutrition
Smell and taste sensation may
decreased
Smell and taste sensation may decrease which leads to _
loss of enjoyment from eating
there is also gastric compliance
decreased
Decreased gastric compliance leads to _ and _
early satiety and
prolonged postprandial satiety
decreased gastric compliance means _
Decreased ability of the stomach to expand
Early satiety meaning
gets full fast
Postprandial meaning
fullness after eating
decreased production of stomach acid
Hypochlorhydria
Hypochlorhydria can lead to _ in _
bacterial overgrowth, Small intestine
There is a normal gut microbiome in the _ _ _
mouth, stomach, and intestines
There is a _ in the mouth, stomach, and intestines
normal gut microbiome
t or f When there is an imbalance/overgrowth in this microbiome,
this will result in different kinds of diseases dt overgrowth
t
Hypochlorhydria can also lead to impaired absorption of _ _ _ _ _
vit. B12, calcium, iron, zinc, folic acid
for the GI tract, there is also in cholecystokinin and _
inc, leptin
Increase in cholecystokinin and leptin will lead to
suppressed appetite
GENITOURINARY: in renal mass
decrease
GENITOURINARY: in RBF
dec
decreased RBF will lead to _
decrease in GFR (glomerular filtration rate)
Impaired water balance for genitoruinary t or f
t
Impaired water balance leads to _
water loss
there is also urinanry incontinence for aging pts t or f
t
for endocrine there is hormone secretion and
tissue responsiveness
dec
what hormones will be decreased
Decreased testosterone, hGH, insulin-like growth factor
(anabolic hormones)
Decreased testosterone, hGH, insulin-like growth factor
(anabolic hormones) leads to _
impaired muscle fiber protein
synthesis
impaired muscle fiber protein
synthesis can lead to _
sarcopenia
endocrine: glucose tolerance
dec
endocrine: estrogen
dec
Decreased estrogen will lead to _ and _
collagen loss & thinning of skin
Bone loss leads to _ and _
osteopenia & osteoporosis
bone loss is prone to menopausal women t or f
t
skin changes are caused by _ and _
Caused by normal aging and environmental factors
there will be thinning of _
epidermis
SKIN: cell replacement
dec
for the skin, immune response and wound healing never changes t or f
f, Impaired immune response and wound healing
moisture content, elasticity, blood supply, sensory sensitivity
dec
Decreased moisture content, elasticity, blood supply, sensory sensitivity
will be more prone to wounds t or f
t
risk of skin disorders and injury
increase