Contrast agents can be generally classified as
A)ionic and nonionic.
B)metallic and nonmetallic.
C)positive and negative.
D)aqueous and lipid based.

Question

Quizplus · Accepted Answer

Contrast media are generally classified as negative or positive contrast agents.Whereas negative contrast agents decrease attenuation of the x-ray beam and produce areas of increased density on the radiograph,positive contrast agents increase the attenuation of the x-ray beam and produce areas of decreased density on the radiograph.

Contrast Agents Can Be Generally Classified as