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Osmolarity Changes
Predicting changes in Volume and Osmolarity in Body Fluid Compartments
| Compartment/Action | Add Hypotonic | Dehydrate | Add Isotonic | Add Hypertonic |
|---|---|---|---|---|
| Instantaneous Effect | ||||
| ECF Volume | Increase | Decrease | Increase | Increase |
| # OAS | Increase | Stay Same | Increase | Big Increase |
| ECF Fluid Osmolarity | Decrease | Increase | Stay Same | Increase |
| During Equilibrium in ICF | (blank) | (blank) | (blank) | (blank) |
| Osmosis | Water into Cell | Water out of cell | None | Water Out of cell |
| After Equilibrium in ICF | (blank) | (blank) | (blank) | (blank) |
| ICF Volume | Increase | Decrease | Stay Same | Decrease |
| # OAS | Stay Same | Stay Same | Stay Same | Stay Same |
| ICF Osmolarity | Decrease | Increase | Stay Same | Increase |