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Flashcards in IV fluids Deck (114)
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1

What is the major component of all body fluids?

Water

2

When there is equilibration of water between compartments, what has been reached?

Homeostasis

3

What is the approximate total body water value for adult dogs & cats?
Neonates?

- 60%
- 80%

4

Do older patients have more or less total body water than adults?

Less

5

What is the 60:40:20 rule?

60% BW is water, 40% ICF, 20% ECF

6

Fluid needs are estimated based on what?

Lean body weight

7

How do you calculate lean body mass with a normal body weight?
With an obese body weight?
With a thin body weight?

- Normal body weight x 0.8
- Obese body weight x 0.7
- Thin body weight x 1.0

8

Is ICF composition similar to or different from ECF?

Very different from ECF

9

Is it easy or difficult to change ICF?

Difficult

10

ECF is composed of what?

Any fluid that is not inside a cell.

11

Changes in hydration are markedly affected where?

ECF

12

Where do we target when trying to change hydration status?

ECF

13

How much of ECF is intravascular?
What is this portion mostly composed of?

- 1/4
- Plasma

14

3/4 of ECF is composed of what?

Interstitial fluid

15

What does blood volume equal?

Plasma + erythrocytes

16

What is the blood volume of cattle?

60 mL/kg

17

What is the blood volume of dogs?

90 mL/kg

18

What is the blood volume of horses?

70 (TBs 100) mL/kg

19

What is the blood volume of cats?

65 mL/kg

20

What is the blood volume of sheep?

60 mL/kg

21

What is the blood volume of pigs?

50 mL/kg

22

What differs significantly between ECF and ICF?

Concentration of solutes

23

When total number of anions and cations in all body fluids is equal, what is maintained?

Electroneutrality

24

What are the 2 primary ECF cations?
Which is most abundant?

- Na+, K+
- Na+

25

Which ECF cation is present in small amounts but very physiologically important?

K+

26

What are the 2 primary ECF anions?

Cl-, HCO3-

27

What are the 2 primary ICF cations?

K+, Mg2+

28

What are the 2 primary ICF anions?

Organic phosphates, proteins

29

In diseased states, fluids are usually initially lost from where?

ECF

30

What are 3 types of fluid & solute loss?

- Loss of hypertonic fluids (solute in excess of water)
- Isotonic loss
- Loss of hypotonic fluids (water in excess of solute)