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)?
- Barium sulfate
- Is barium sulfate classified as a positive or negative contrast agent?
- Positive contrast agent
- Give an example of a negative contrast agent used in radiography.
- Room air or carbon dioxide
- Why is barium sulfate contraindicated when a bowel perforation is suspected?
- 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?
- A water-soluble iodinated contrast agent
- What are the two chemical categories of iodinated contrast media?
- Ionic and nonionic
- Which type of iodinated contrast media, ionic or nonionic, has a lower rate of adverse reactions?
- Nonionic
- What does the abbreviation LOCM stand for?
- Low-osmolality contrast media
- How does contrast media osmolality relate to the risk of an adverse reaction?
- Higher osmolality is associated with a higher risk of reaction
- What does the abbreviation HOCM stand for?
- High-osmolality contrast media
- What type of contrast agent is used for myelography?
- A nonionic, water-soluble iodinated contrast agent
- By what route is contrast typically introduced for a retrograde cystogram?
- Through a urinary catheter directly into the bladder
- What term describes a contrast reaction that produces allergy-like symptoms without being IgE-mediated?
- An anaphylactoid (idiosyncratic) reaction
- What are the three severity categories used to classify contrast media reactions?
- Mild, moderate, and severe
- Name two common symptoms of a mild contrast reaction.
- Nausea and vomiting