The osmotic effects of ionic contrast agents are a result of the movement of
A)water from the body's cells into the bloodstream,causing increased blood volume and higher blood pressure.
B)water from the blood plasma into cells,causing them to burst.
C)iodine into cells,thereby increasing the cell membrane permeability.
D)glucose molecules into cells,increasing metabolism.

Question

Quizplus · Accepted Answer

The osmolality of contrast media is of great biologic significance.Most adverse reactions to contrast media have been related to the osmolality of the media because the osmolality of a solution determines osmotic pressure,which controls the movement of water in the body.High-osmolality contrast media have an increased number of particles in solution,such as blood plasma,which pull water toward them.

The Osmotic Effects of Ionic Contrast Agents Are a Result