Formulas Flashcards
1
Q
Formula for osmolarity?
A
concentration of solute X # of particles of solute ( in mOsm/L)
Eg. NaCl is 2g. Glucose is 1g, CaCl2 is 3g
2
Q
Formula for TWB ?
A
0.6 X weight
3
Q
Formula for ICF (using weight)?
A
0.4 X weight
4
Q
formula for blood volume ?=
A
plasma volume / 1-Hct
5
Q
formula for volume of compartment ?
A
(amt injected - excreted) / conc. of marker
6
Q
indirectly formula for ICF?
A
ICF = TBW - ECF
7
Q
Formula for ECF?
A
0.2 X body weight
8
Q
formula for interstitial fluid volume?
A
ECF - plasma
9
Q
2 formulas for plasma osmolarity? =
A
2([NA+]) + glucose/18 + BUN/2.8
2 X the plasma sodium concentration
10
Q
Formula for total tension
A
Passive tension + active tension
