More Contrast Agents

Question 1

Ionic contrast agents are irritating to the ________ and can cause seizures if they reach the __________

Answer 1

CNS
Brain

Question 2

Non ionic contrast agents can be administered ______________. They are better for the ______, but are very ______________

Answer 2

Intravascularly
CNS
Expensive

Question 3

Two categories of iodine (positive) agents

Answer 3

Ionic and Nonionic
(both water soluble)

Question 4

Air can be a natural ___________ ___________, but can possibly cause ___________ if it makes it’s way to the blood stream

Answer 4

Contrast agent
Emboli (poss from cystitis)

Question 5

Patient preparation for contrast study/ how to empty GI tract (2)

Answer 5

1. Fasting for 12-24 hours
2. Enema > 1 hr prior (for gas accumulation)

Question 6

An alternative to an enema for emptying the GI tract

Answer 6

Cathartics 12 hours prior

Question 7

Emptying the GI tract improves visualization of (2)

Answer 7

1. GI
2. Renal

Question 8

Esophagogram

Answer 8

Putting contrast in the esophagus

Question 9

Barium or iodine can be used for an esophagogram, but avoid barium if you suspect…

Answer 9

A hole in the esophagus

Question 10

Contrast agents for an esophagogram are liquid and can be mixed with ____________ for administration

Answer 10

Food