Contrast Media

UGI is the study which is considered retrograde study

• true

• false

Barium sulfate easily dissolves in the water. It is an iconic solution.

• true

• false

During intra-articular study, the contrast media is injected into:

• an artery

• into arachnoid membrane of the brain

• a joint

• a vein

All of the following statements are true, EXCEPT:

• ionic contrast media dissociate into anion and cation

• ionic contrast media are less expensive

• ionic contrast media increase blood osmolality

• ionic contrast media decrease blood osmolality

All of the following statements regarding positive contrast media are correct, EXCEPT

• high atomic number

• appear bright on the radiographic image

• radiolucent

• increase attenuation of x-rays

Viscosity:

1. measures the toxicity of a liquid

2. the less viscous a fluid is, the easier it is to flow

3. is inversely proportional to temperature

• 2 and 3

• 1 and 3

• 1 and 2

• all of the above

Which of the following occurs in many patients and is defined as an expected outcome to the introduction of iodinated contrast media?

• mild condition of urticaria (hives)

• some metallic taste in mouth and a temporary hot flash

• moderate itching and sneezing

• all of the above

What is the primary purpose of the premedication procedure before an iodinated contrast media study?

• reduces the risk of a contrast media reaction

• reduces anxiety

• decreases blood pressure

• permits greater contrast enhancement of kidneys during an IVU procedure

What level of severity is the reaction of giant hives

• normal side effects

• severe reaction

• moderate reaction

• mild reaction

A medical emergency must be declared if the patient experiences a severe contrast media

• true

• false