Contrast media types, adverse reaction recognition, and patient screening prior to a contrast study tested on radiologic technology certification exams.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the most commonly used contrast medium for imaging the GI tract (e.g., barium swallow)?
Show answer
Barium sulfate- Is barium sulfate classified as a positive or negative contrast agent?
Show answer
Positive contrast agent- Give an example of a negative contrast agent used in radiography.
Show answer
Room air or carbon dioxide- Why is barium sulfate contraindicated when a bowel perforation is suspected?
Show answer
It can leak into the peritoneal cavity and cause chemical peritonitis- What type of contrast agent should be used instead of barium sulfate when perforation is suspected?
Show answer
A water-soluble iodinated contrast agent- What are the two chemical categories of iodinated contrast media?
Show answer
Ionic and nonionic- Which type of iodinated contrast media, ionic or nonionic, has a lower rate of adverse reactions?
Show answer
Nonionic- What does the abbreviation LOCM stand for?
Show answer
Low-osmolality contrast media- How does contrast media osmolality relate to the risk of an adverse reaction?
Show answer
Higher osmolality is associated with a higher risk of reaction- What does the abbreviation HOCM stand for?
Show answer
High-osmolality contrast media- What type of contrast agent is used for myelography?
Show answer
A nonionic, water-soluble iodinated contrast agent- By what route is contrast typically introduced for a retrograde cystogram?
Show answer
Through a urinary catheter directly into the bladder- What term describes a contrast reaction that produces allergy-like symptoms without being IgE-mediated?
Show answer
An anaphylactoid (idiosyncratic) reaction- What are the three severity categories used to classify contrast media reactions?
Show answer
Mild, moderate, and severe- Name two common symptoms of a mild contrast reaction.
Show answer
Nausea and vomiting
FlashKeepers