Altered Homeostasis Flashcards Preview

Geriatrics > Altered Homeostasis > Flashcards

Flashcards in Altered Homeostasis Deck (25):
1

What is altered homeostasis?

The process of change brought on by the normal ging process and the impact of illness and injury

2

What are the cardiac system changes with aging?

Decreased diastolic function
Decreased CO
Decreased response to symp nerve stimulation
More reliance on atrial kick
Decreased HR

3

What is the most predictable change with aging?

Decrease in maximal heart rate with exercise and stress

4

What is the effect of A-fib with aging?

Since we rely more on atrial kick, impairs CO

5

What are the lung changes as we age?

1. Alteration of collagen and elastin (decreased elasticity)
2. Collapse of small airways without change in total lung capacity
3. Ventilation perfusion imbalance

6

What are the GI changes in old age?

Slowed colon transit time (not normal)
Slower EtOH metabolism

7

Why is constipation seen often in old age?

Slowed Colonic transit time

8

What are the CNS changes seen in aging

Decreased blood flow to the brain
Cerebral atrophy

9

What happens to the iris as we age?

Increased rigidity

10

What happens to the lens of the eye as we age? What is the consequence of this?

Accumulation of yellow substance--more glare

11

What happens to pupil size as we age?

Decreases

12

What happens to our perception of color are we age?

Alters

13

What happens to the lens of the eye as we age? What is the consequence of this?

Accumulation of yellow substance--more glare
Decreased elasticity

14

What happens to the size of the anterior chamber of the eye as we age?

Decreases in size

15

What happens to the cochlear nerves as we age? What is the clinical consequence of this?

Decreased number

Tinnitus

16

What happens out ability to hear different tones as we age?

Decreased--more loss of higher frequencies than lower

17

What happens to the skin as we age?

Decreased vascularity
Decreased melanocytes

18

What happens to the dermis as we age?

Lower density
Lower Vascularity
Lower melanocytes

19

What happens to the epidermis as we age?

Altered turnover time

20

What are the clinical consequences of skin aging?

Decreased sweating
Poor insulation

21

What happens to the arch of the foot as we age?

Decreased arch

22

As we age, GFR goes down, and our concentration capacity is decreased. What are the clinical consequences of this? (3)

Decreased drug clearance
Facilitation of incontinence
Dehydration

23

What happens to the level of norepi, vasopressin, insulin, ANP, and PTH as we age?

Goes up

24

What are the consequences of the endocrine changes as we age?

Altered sodium homeostasis
Decreased glucose tolerance
Impaired volume regulation

25

What are the six key points to healthy aging?

1. Socilaization
2. Exercise
3. Stress reduction
4. Use of talents for self and others
5. Avoid accidents
6. Nothing in excess