Fluid&Electrolytes A&P

Helpfulness: 0
Set Details Share
created 3 years ago by Vanessamae98
22 views
updated 2 years ago by Vanessamae98
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

What is the average water content?

60%, 42 L

2

How does the avg water content differ in females?

More body fat, less water

3

What are the fluid compartments?

ICF, ECF

4

how the percentage of total body water is distributed

plasma

5

Composition of plasma differ from interstitial fluid?

Wall of capillary separates, proteins higher in plasma ions

6

How does composition of ECF differ from ICF

ECF more NA, ICF more K

7

Major cation & anion of ICF

cation- K

anion- phosphates

8

Major cation & anion of ECF

cation- Na

anion- chloride

9

What forces water to move between components?

driven by changes in hydrostatic pressure & osmotic pressure

10

Fluid exchanges in capillary bed

higher hydrostatic pressure than interstitial fluid, pushes fluid out of vessels into interstitial fluid

11

Tonicity

water moves to where more particles are

Hypertonic/Hypotonic

12

If an individual takes in water

Plasma dilutes, hypotonic-water moves into cells

13

If an individual is dehydrated

Plasma is more concentrated, hypertonic-water moves into vessel

14

Sensible water loss

Noticeable ex. Urine, feces

15

Insensible water loss

not noticeable, transpiration in skin, lungs

16

Which type of water loss is most readily controlled to help balance h20 homeostasis?

urine

17

What ways body gains water?

food, squids, metabolic h2o

18

Where is thirst center?

hypothalamus

19

What type of receptor and stimulus

Osmo receptor, Increased osmo

20

What other stimuli

Decreased plasma volume, decreased saliva, angiotensin 2

21

What is necessary to form concentrated urine?

ADH countercurrent mechanism to set up osmotic gradient, need juxtamedularry nephrons

22

Fluid regulating hormone

ADH,

Aldosterone

ANP- looses h2o

23

Causes of dehydration

Decreased volume

^ Osmo

Low intake

^ output

^ sweat

ADH,aldosterone

24

Over hydration

^ vol

Decreased osmo

^intake

impaired renal function

abnormal ADH

25

Volume depletion

Decreased vol

=osmo

loss of h2o & solutes

hemorrhage

severe burns

26

Volume excess

^vol

=osmo

retention h20 & solutes

vomiting/diarrhea

edema

renal failure

hypoaldosteronism

27

causes of edema

^capillary pressure

Decrease plasma oncotic pressure

block lymphatics

^ capillary permeable

28

What are electrolytes

salts that dissociate into ions in solution

29

What hormones regulate sodium?

Aldosterone says retain Na, Angiotensin 2 retain, ANP loose Na

30

Hypernatremia

dehydration

31

Hyponatremia

excessive water and no electrolytes

32

What hormone regulates K

Aldosterone retain K, loose NA

33

What other things can influence the distribution of K

Insulin, aldosterone and epic can stimulate movement of K into cells

34

Hyperkalemia-

renal failure, acidosis

35

Hypokalemia-

diuretics,

36

What hormone regulates Calcium (and phosphate)

PTH & calcitrol