Biology of Aging Flashcards
By age 70 your cardiac output is reduced by….?
70%
Should left ventricle ejection fraction be changing in the aging population?
NO
If the ejection fraction is changing this is pathological.
What occurs to pt heart rate and maximum heart rate in the elderly?
Heart rate decreases along with maximum heart rate.
What is the most common valvular lesion in the eldlerly?
Aortic Stenosis!
Most common murmor.
What occurs to elderly lungs?
Alveoli dialate - Decreased gas
Lungs more rigid
V/Q mismatch due to increased alveolar arterial O2 gradient.
Is carbon dioxide excretion impaired with age?
NO
CO2 accumulation is pathological and must be further investigated.
As we age, does Total lung capacity change?
Inspiratory capacity?
Total lung capacity will not change
inspiration capacity decreases
True or false, max breathing capacity can decrease about 80%?
true.
Are a decline in liver function tests with age normal?
NO
however cytochrome p450 content decreases with age.
Do fluid electrolyte homeostasis change with age?
NO
Fluid and electrolyte homeostasis should not change with age!
Should incidence of urinary incontinence change with age?
Yes, increased incedence of urinary incontinence occurs after age 80.
Age related neuronal loss is most common where?
In the cerebellum and cerebral cortex
A decrease in Acetylcholine is related to what mental disorder?
Dementias
IS it common for executive thought function as well as working and episodic memory to decline with time?
Yes this is normal and occurs more dramatically over 70.
Is it common for the abiliy to recognize familiar object and faces to degress over time?
No
