Lecture 3 Body Fluids

Question 1

Describe the characteristics of the various body fluid compartments and their relative proportions.

ICF
ECF

Answer 1

ICF: Intercellular fluid: fluid w/ in the cell
ECF: Extra cellular fluid. Plasm, interstitial fluid and ECF.

2/3 ICF and 1/3 ECF

Question 2

Describe the characteristics of the various body fluid compartments and their relative proportions.

ICF
ECF

Answer 2

ICF: Intercellular fluid: fluid w/ in the cell
ECF: Extra cellular fluid. Plasm, interstitial fluid and ECF.

2/3 ICF and 1/3 ECF

Question 3

What is the total body of water

Answer 3

60% of the body weight

ICF-40%
ECF- 20%

Question 4

Total body of h20 calculation

Answer 4

TBW=0.7(LBM) =0.1(AT)

Question 5

How does water content correlate w/ body fat?

Answer 5

the more body fat the less water percentage
the less body fat the more water percentage

Question 6

Describe the ionic composition of the body fluid compartments.

Answer 6

Interstital Fluids: Na+ and Cl- and HCO3- no RBC or PLASMA

Intracellular Fluid: K+ and proteins

Question 7

Calculate plasma osmolarity.

Answer 7

Osmolarity (mOsm/L H2O) =
2Na+ (mEq/L) + Glucose (mg/dL)/18 + BUN (mg/dL)/2.8