Contrast Media in Radiology
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Questions and Answers

Which of the following drug classes can potentially lower the seizure threshold when used in combination with contrast media during cerebral angiography?

  • Antipsychotics, antihistamines, analeptics, thioxanthenes, and tricyclic antidepressants (correct)
  • Benzodiazepines, opioids, corticosteroids, and nonsteroidal anti-inflammatory drugs
  • Antibiotics, antifungals, antivirals, and antimalarials
  • Beta-blockers, calcium channel blockers, angiotensin-converting enzyme inhibitors, and diuretics

    • Which of the following statements regarding the effects of contrast media on cardiac function is correct?

  • Contrast media can increase the inotropic effects of digitalis and calcium channel blockers.
  • Contrast media can enhance the effects of digitalis and calcium channel blockers.
  • Contrast media have no significant interactions with drugs affecting cardiac function.
  • Contrast media can potentially cause hypotension in patients taking calcium channel blockers. (correct)

    • Which of the following statements regarding the effects of contrast media on isotope studies is true?

  • Iodinated contrast media have no significant impact on diagnostic scintigraphy or radioiodine treatment.
  • Iodinated contrast media can interfere with the distribution of $^{99m}$Tc-pyrophosphate isotope for bone imaging. (correct)
  • Iodinated contrast media can increase the sensitivity of diagnostic scintigraphy.
  • Iodinated contrast media can enhance the uptake of radioiodine during treatment.

    • Which of the following statements regarding mixing contrast media with other drugs is correct?

    <p>Contrast media should not be mixed with other drugs before intravascular use.</p> Signup and view all the answers

    Which of the following statements regarding the effects of contrast media on biochemical assays is correct?

    <p>The effects of contrast media on biochemical assays are not mentioned in the given text.</p> Signup and view all the answers

    Which of the following contrast materials can be used for ultrasound imaging?

    <p>Nanobubbles and microbubbles</p> Signup and view all the answers

    Which of the following statements regarding the use of saline as a contrast material is correct?

    <p>Saline is used as a negative contrast agent for computed tomography (CT) imaging.</p> Signup and view all the answers

    Which of the following statements regarding the use of gas as a contrast material is correct?

    <p>Gas can be used as a contrast agent for ultrasound imaging of the gastrointestinal tract.</p> Signup and view all the answers

    Which of the following statements regarding gadolinium-based contrast agents (GBCAs) is correct?

    <p>GBCAs are commonly used for magnetic resonance imaging (MRI).</p> Signup and view all the answers

    Which of the following statements regarding the administration of contrast media and other drugs is correct?

    <p>If the same venous access is used, there should be adequate flushing with normal saline before injecting other drugs.</p> Signup and view all the answers

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