5 - Contrast Media in Diagnostic Imaging

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Questions and Answers

What is the main excretion route of iodinated contrast media administered intravenously?

  • Metabolized in the liver
  • Gastrointestinal excretion
  • Glomerular filtration (correct)
  • Biliary excretion

What is the recommended gap between injection of iodinated contrast medium and nuclear scintigraphy for thyroid imaging?

  • 24 hours
  • 7 days
  • 14 days (correct)
  • 12 hours

Which of the following is a characteristic of barium sulfate?

  • Inert (correct)
  • Radiolucent
  • Iodized salt
  • Water soluble

What is the most important ultrasound setting affecting microbubble behavior in contrast-enhanced imaging?

<p>Mechanical index (B)</p> Signup and view all the answers

What is the main effect of Gadolinium based MR contrast media?

<p>Shorten T1 relaxation time (A)</p> Signup and view all the answers

What is the primary effect of higher iodine concentrations in contrast media?

<p>Increased osmolality (D)</p> Signup and view all the answers

Nephrogenic systemic fibrosis (NSF) has been reported as a late adverse reaction to the administration of which type of contrast medium?

<p>Gadolinium (C)</p> Signup and view all the answers

Which of the following adverse reactions to iodinated contrast media is independent of the dose administered? (Select one)

<p>Hypersensitivity reaction (A)</p> Signup and view all the answers

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Paris

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