ACE Review - Geriatrics Flashcards
what happens to geriatric lung compliance
increase in compliance because decrease in elastic recoil of lung
what is the result of increase lung compliance
prolong expiratory phase and decrease expiratory max flow
what happens to the bronchioles and small airway as a result of geriatrics increase of compliance 2ndry to decrease elasticity
dilated bronchioles, early colapse of small airway
what happens to dead space and diffusion capacity of geriatric
bc dilated bronchioles and colaps small airway early, increase deadspace, and decrease diffusion capacity
what happens to total lung capacity of geriatric
same
what happens to residual volume
increases
what happens to vital capacity
decreases
what happens to frc
decreases
what happens to maximum expiratory flow
decreases
what happens to A-a gradient
increases
what happens to closing capacity
increases
what is closing capacity
the volume at which alveoli collapse
why is the A-a gradient increased in geriatrics
because of increase Closing capcity and decreased frc
how is the Closing capcity to FRC in young patients
small ratio
how is CC to FRC ratio in 44 year old
equal in the supine position
how is the CC to FRC ratio in a 66 year old
equal in the sitting position
cardiac. what happens to the cardiac compliance
decreased compliance
cardiac. what does decreased compliance do to end diastolic pressure
increase end diastolic pressure bc stiffer walls make pressures higher
cardiac. what happens to stroke volume
increase
cardiac. how do you get increase stroke volume when there is decrease compliance
because geriatrics have an increase in end diastolic volume.
cardiac. what happens to geriatrics resting cardiac index
decrease
cardiac. how do you get decrease cardiac index when your stroke volume is increased
bc geriatrics have a decreased heart rate.
cardiac. what happens to pulse pressure
increase
cardiac. what is the moa for increase pulse pressure
the aorta is less compliant…plus there is increase in stroke volume. so with one contraction, the sbp will be much different than the dbp
