When isotonic fluid is added to the ECF, fluid
A) will shift from the ICF into the ECF
B) will not shift between the ECF and ICF
C) will shift from the ECF into the ICF
D) in the ECF will become hypotonic
E) will shift from the ECF into the ICF and in the ECF will become hypotonic

Question

Quizplus · Accepted Answer

Isotonic fluid means that the concentration of solutes in the added fluid is the same as the concentration of solutes in the ECF. Therefore, there is no concentration gradient to drive fluid movement between the ECF and ICF, and equilibrium is already established. As a result, no fluid shift will occur between the ECF and ICF.

When Isotonic Fluid Is Added to the ECF, Fluid