When Iodinated Media Are Mixed with Incompatible Medications,the Contrast Agent

Multiple Choice

When iodinated media are mixed with incompatible medications,the contrast agent may undergo a chemical change,resulting in solid particles that precipitate with potential for very serious consequences.To avoid the possibility of this complication when injecting medication through an existing IV line,you should:

A) draw back on the syringe and check for precipitate before injecting.
B) look up the medication in a suitable reference to be sure it is compatible.
C) flush the catheter with saline before and after injection of the contrast medium.
D) use only isosmolar contrast agents in this situation.