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Geriatrics > Biological Changes > Flashcards

Flashcards in Biological Changes Deck (27):
1

What happens to brain neurons as we age?

0-50% decrease

2

What happens to glomeruli as we age?

50% decrease

3

What happens to liver weight as we age?

20% decrease

4

What happens to coronary blood flow as we age?

30% decrease

5

What happens to vital capacity as we age?

40% decrease

6

What happens to max breathing capacity as we age?

80% decrease

7

What happens to GFR as we age?

Decrease 50%

8

What happens to muscle strength as we age?

Decreases 20%

9

What is the average height loss between ages 20-80?

1-4 inches

10

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

Flattens

11

What happens to the spinal curvature as we age?

Increased

12

What must be done to Ca level supplementation after menopause?

Double

13

What are the skin changes seen with aging?

Thinning of the epidermis
Loss of elasticity
Loss of subcutaneous adipose

14

What is xerosis?

Dry skin

15

What are the eye changes in geriatric patients?

Decrease tears
Ectropion
Iris fades

16

Why are greens and blues bad with aging?

Cones degenerate

17

Presbycusis affects which sex more?

Males

18

By what age do most adults have trouble hearing above 4000 Hz?

60

19

What is the range of normal speech (hz)?

500-2000

20

By age 70, CO is reduced by what?

up to 70%

21

Why does the heart muscle get more irritable as we age?

Hypoxia

22

What vitamin in particular do we have problems absorbing as we age?

B12

23

What happens to the bone marrow as we age?

fatty deposition

24

What happens to cerebral blood flow by age 70?

up to 20% decrease

25

Decreases in dopamine = ?

Parkinsonism

26

Decreases in Ach = ?

Dementias

27

What are the three leading causes of death in geriatric patients?

1. Heart
2. CA
3. Lower lung infx