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Questions and Answers
What are the mechanisms involved in chemotoxicity due to contrast media?
What are the mechanisms involved in chemotoxicity due to contrast media?
- Red blood cell lysis, Vessel wall thinning, Platelet aggregation
- Plasma volume reduction, Pain reduction, Circulatory overload prevention
- Enzyme blocking, Immune system activation, Complement activation (correct)
- Protein binding, Enzyme activation, Nitric Oxide release
How does osmotoxicity result from contrast media?
How does osmotoxicity result from contrast media?
- Protein aggregation and pain reduction
- Immune system suppression and redness in blood vessels
- Decreased plasma volume and blood vessel constriction
- Osmotic movement of water and increased plasma volume (correct)
What effect does high viscosity of contrast media have on blood vessels?
What effect does high viscosity of contrast media have on blood vessels?
- Constriction and pain
- Nitric Oxide release and vessel dilation (correct)
- Enzyme blocking and immune system activation
- Plasma volume reduction and redness
How can osmotoxicity be reduced?
How can osmotoxicity be reduced?
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What effect does warming contrast media have on its viscosity?
What effect does warming contrast media have on its viscosity?
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Which of the following is NOT a feature of a mild contrast reaction?
Which of the following is NOT a feature of a mild contrast reaction?
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What is the underlying mechanism behind an anaphylactic reaction to contrast media?
What is the underlying mechanism behind an anaphylactic reaction to contrast media?
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What is the main purpose of the immune system's response in an anaphylactic reaction to contrast media?
What is the main purpose of the immune system's response in an anaphylactic reaction to contrast media?
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What is the role of IgE antibodies in an anaphylactic reaction to contrast media?
What is the role of IgE antibodies in an anaphylactic reaction to contrast media?
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What is the key difference between an anaphylactic reaction and an anaphylactoid reaction to contrast media?
What is the key difference between an anaphylactic reaction and an anaphylactoid reaction to contrast media?
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