What is a positive contrast? Give two examples. correct answers Are radiopaque contrast; high attenuation.
Iodine and Barium.
Describe osmolality. correct answers Concentration of particles in the solution.
Propensity to pull fluid into the vessel.
Greatly affects potential for adverse react...
ARRT CT Registry Review - Contrast Administration ||
100% VERIFIED
What is a positive contrast? Give two examples. correct answers Are radiopaque contrast;
high attenuation.
Iodine and Barium.
Describe osmolality. correct answers Concentration of particles in the solution.
Propensity to pull fluid into the vessel.
Greatly affects potential for adverse reactions.
Describe ionic contrast. correct answers Breaks into ions when injected creating a high
osmolality and in turn more risk for adverse reaction.
Describe non-ionic contrast. correct answers Do not dissociate keeping a low osmolality.
Describe iso-osmolar contrast. correct answers Has the same osmolality as blood causing less
reactions.
List 2 high-osmolar contrasts. correct answers Conray
Hypaque
List 3 low-osmolar contrast. correct answers Omnipaque
Isovue
Optiray
List 1 iso-osmolar contrast. correct answers Visipaque
Define enteral. correct answers Administered orally or rectally.
Time for contrast to move through GI tract? correct answers 30-90 minutes.
Contraindication for WSI contrast? correct answers Iodine allergy
What is a negative contrast? Give 3 examples. correct answers Are radiolucent contrasts; low
attenuation.
Room air, gasses, water.
Effervescent granules.
Carbonated beverages.
What is a neutral contrast? Give 1 example. correct answers Distend the GI tract without
affecting attenuation.
VoLumen.
What are the ACR's 4H's? correct answers ACR's special considerations for contrast
administration.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ProPerfomer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.70. You're not tied to anything after your purchase.
