L2: Body Fluid Compartments & Water Transport Flashcards
1
Q
Total Body Water (TBW) of Men
A
60% of body weight
2
Q
Total Body Water (TBW) of Women
A
50% of body weight
3
Q
ICF
A
60% of TBW
4
Q
ECF
A
40% of TBW
5
Q
What does the ECF consist of?
A
- Interstitial fluid
- Plasma
- Transcellular flluid
6
Q
Interstitial fluid is ___% of ___ fluid
A
75% of ECF
7
Q
Plasma volume is ___% of ___ fluid
A
20% of ECF
8
Q
Transcellular fluid is ___% of ____ fluid
A
5% of ECF
9
Q
Blood volume =
A
PV/(1 - Hct)
10
Q
Composition of Interstitial fluid (avg 13L)
A
Bulk IF (8L)
Bone (2L)
Dense connective tissue (3L)
11
Q
Avg osmolality of all body fluids
A
290 mOsm
12
Q
Men Hct
A
45%
13
Q
Women Hct
A
40%
14
Q
Average Blood Volume for 70kg male
A
BV = PV/(1 - Hct) PV = 70*0.6*0.4*0.2 = 3L BV = 3/(1 - 0.45) = 5.45L
15
Q
ICF [Na+]
A
15mM
