Iodinated contrast media

Question 1

low osmolar agents

Answer 1

Iohexol (omnipaque), iopamidol (Isovue), iopromide (ultravist), ioversol (optiray, and ioxilan (oxilan)

Question 2

iso-osmolar agent

Answer 2

iodixanol (Visipaque)

Question 3

Ionic contrast media dissociates into what in solution

Answer 3

an anion (contains the tri-iodinated benzene ring) AND a cation (sodium or methylglucamine)

Question 4

monomeric contrast molecules

Answer 4

only one tri-iodinated benzene ring

Question 5

which iodinated contrast agents have the highest osmolality?

Answer 5

ionic monomeric

Question 6

nonionic monomeric contrast media osmolality compared to serum

Answer 6

2x serum osmolality

Question 7

nonionic dimers contrast media osmolality compared to serum

Answer 7

similar to serum

Question 8

contrast media used for intra-arterial injection since they may cause less discomfort

Answer 8

ios-osmolar agents (nonionic dimers)

Question 9

typical serum osmolality

Answer 9

280-300