Altered Homeostasis

Question 1

What is altered homeostasis?

Answer 1

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

Question 2

What are the cardiac system changes with aging?

Answer 2

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

Question 3

What is the most predictable change with aging?

Answer 3

Decrease in maximal heart rate with exercise and stress

Question 4

What is the effect of A-fib with aging?

Answer 4

Since we rely more on atrial kick, impairs CO

Question 5

What are the lung changes as we age?

Answer 5

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

Question 6

What are the GI changes in old age?

Answer 6

Slowed colon transit time (not normal)

Slower EtOH metabolism

Question 7

Why is constipation seen often in old age?

Answer 7

Slowed Colonic transit time

Question 8

What are the CNS changes seen in aging

Answer 8

Decreased blood flow to the brain

Cerebral atrophy

Question 9

What happens to the iris as we age?

Answer 9

Increased rigidity

Question 10

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

Answer 10

Accumulation of yellow substance–more glare

Question 11

What happens to pupil size as we age?

Answer 11

Decreases

Question 12

What happens to our perception of color are we age?

Answer 12

Alters

Question 13

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

Answer 13

Accumulation of yellow substance–more glare

Decreased elasticity

Question 14

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

Answer 14

Decreases in size

Question 15

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

Answer 15

Decreased number

Tinnitus

Question 16

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

Answer 16

Decreased–more loss of higher frequencies than lower

Question 17

What happens to the skin as we age?

Answer 17

Decreased vascularity

Decreased melanocytes

Question 18

What happens to the dermis as we age?

Answer 18

Lower density
Lower Vascularity
Lower melanocytes

Question 19

What happens to the epidermis as we age?

Answer 19

Altered turnover time

Question 20

What are the clinical consequences of skin aging?

Answer 20

Decreased sweating

Poor insulation

Question 21

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

Answer 21

Decreased arch

Question 22

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

Answer 22

Decreased drug clearance
Facilitation of incontinence
Dehydration

Question 23

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

Answer 23

Goes up

Question 24

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

Answer 24

Altered sodium homeostasis
Decreased glucose tolerance
Impaired volume regulation

Question 25

What are the six key points to healthy aging?

Answer 25

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