Question

Which pairing of an intravenously administered fluid and its effect on both intravascular fluid volume (IV) and extracellular fluid volume (ECV) would be correct in a normal patient?

Tonicity is given relative to normal plasma. Assume a simple 2-compartment model (vascular space [blood/plasma] and extracellular fluid space).

Answer 1

In a normal patient, an intravenously administered isotonic solution would have the same osmolarity as the extracellular fluid (ECF) and the intravascular fluid (IV) volume.

Step-by-step explanation:

In a normal patient, an intravenously administered isotonic solution would have the same osmolarity as the extracellular fluid (ECF) and the intravascular fluid (IV) volume. This means that the concentration of solutes in the isotonic solution matches that of the ECF and IV, resulting in no net movement of water into or out of the cell.