Fluid and electrolyte balance
by maryam almahri
1. The average of Body fluid is 60% of body weight
1.1. Extracellular fluid is 20%of body weight
1.1.1. 75% of ECF in interstitial fluid
1.1.2. 25% of ECF in plasma
1.2. Intracellular fluid is 40% of body weight
2. Aldosterone
3. ICF constituents
3.1. Small amount of Na, Cl,
3.2. Ca
3.3. PO4
3.4. Mg
3.5. SO2
3.6. Large amount of proteins
4. Body fluid compartment
5. ECF constituents
5.1. Na
5.2. Cl
5.3. HCO3
5.4. Small amount of K, Ca, Mg,PO4, and organic acid ions
6. Formula: concentration x number of dissociable particles
6.1. Tonicity (Changing in cell volume)
6.1.1. No changing ( isotonic)
6.1.2. Cell enlarge ( hypotonic)
6.1.3. Cell shrinks (hypertonic)
7. Effects by osmotic force
7.1. Osmolarity effects by small amount of solute such as Na, K
8. Fluid regulation
8.1. By hormones
8.1.1. ADH
9. Mechanism of fluid transport
9.1. Active transport (domains of energy power)
9.1.1. By ATP
9.1.2. By ionic concentration gradient
10. Function of body Fluid
10.1. Serves vital health
10.2. Input and Output of body fluid
10.2.1. Input
10.2.1.1. Food- drinking water- metabolism
10.2.1.2. Passive transport (no domains of energy power)
10.2.1.2.1. Simple diffusion
10.2.1.2.2. Facilitated diffusion
10.2.1.2.3. Osmosis
10.2.2. Output
10.2.2.1. Urine
10.2.2.2. Insensible loss: sweat-faeces- lungs