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Contrast Agents MCQs

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1. What is the primary purpose of contrast agents in medical imaging?





2. Which type of contrast agent is most commonly used for X-ray and CT imaging?





3. What is the main component of barium sulfate contrast media?





4. Which of the following is a common side effect of iodinated contrast agents?





5. In which imaging modality is gadolinium-based contrast primarily used?





6. What is a major contraindication for the use of iodine-based contrast agents?





7. What is the primary risk associated with the use of gadolinium-based contrast agents?





8. Which contrast agent is typically used for gastrointestinal imaging?





9. What is the main mechanism by which iodinated contrast agents work?





10. Which of the following patients is at higher risk for an allergic reaction to contrast media?





11. What is the purpose of using saline flush after administering contrast media?





12. Which imaging study often requires the use of negative contrast agents like air or carbon dioxide?





13. What type of contrast agent is typically used for intravenous pyelography (IVP)?





14. Which imaging procedure would most likely utilize an intravascular contrast agent?





15. Which of the following is NOT a reason for using contrast agents in imaging?





16. What is a common preparation requirement for patients receiving barium sulfate contrast?





17. What is the primary purpose of a test dose of contrast media?





18. Which of the following is an example of a positive contrast agent?





19. What is the typical route of administration for gadolinium-based contrast agents?





20. Which imaging technique is least likely to require the use of contrast agents?





21. What should patients be advised to do after receiving iodine-based contrast media?





22. Which of the following conditions may increase the risk of nephrotoxicity from contrast agents?





23. What is the most important factor to monitor after administering contrast agents?





24. What is the role of osmolarity in iodinated contrast agents?





25. What is the main advantage of using low-osmolar contrast agents?





26. Which of the following contrast agents can cause a “warm sensation” during administration?





27. What is one reason for using carbon dioxide as a contrast agent?





28. What is the typical time frame for observing patients after contrast administration?





29. What is the potential effect of a contrast agent on blood sugar levels?





30. In what situation would you avoid using barium sulfate contrast media?





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