Which solution is isotonic to a red blood cell?
A)water
B)0.5% NaCl
C)2% glucose
D)0.9% NaCl
E)10% glucose

Question

Quizplus · Accepted Answer

A solution is considered isotonic to red blood cells if it has the same concentration of solutes as the cytoplasm of the red blood cell, and therefore does not cause the cell to shrink or swell. The most commonly used isotonic solution in medical settings is 0.9% NaCl (normal saline), which has a similar concentration of solutes to red blood cells. Therefore, the correct choice is D.

Which Solution Is Isotonic to a Red Blood Cell