Water, Electrolyte and Acid/Base Balance

Question 1

How is the total 45l body water divided into compartments?

Answer 1

30l Intracellular Fluid
15l Intracellular Fluid
- 12l Extravascular (Low protein)
- 3 Intravascular (Plasma - High protein)

Question 2

What are the normal electrolyte concentrations of the ECF and ICF?

Answer 2

ECF - Na+ 140 mmol/l
- K+ 4 mmol/l

ICF - Na+ 12 mmol/l
- K+ 150 mmol/l