Question

Which of the following may help to reduce adverse reactions resulting from the administration of IV contrast media?

1) use low osmolar contrast media
2) administer an antihistamine prior to the IV contrast injection
3) decrease the rate of injection
4) increase the rate of injection

Answer 1

To reduce adverse reactions to IV contrast media, it is advisable to use low osmolar contrast media, administer an antihistamine beforehand, and decrease the rate of injection. Increasing the injection rate could worsen reactions and is not recommended.

Step-by-step explanation:

Which of the following may help to reduce adverse reactions resulting from the administration of IV contrast media? To minimize allergic reactions or other adverse effects during the administration of IV contrast media, several precautionary steps can be taken:

• Use low osmolar contrast media: Low osmolar contrast agents are less likely to cause hemolysis of red blood cells and thus reduce the likelihood of adverse reactions.
• Administer an antihistamine prior to the IV contrast injection: Antihistamines can prevent or mitigate allergic reactions by blocking histamine receptors.
• Decrease the rate of injection: Slowing down the injection rate can give the body more time to process the contrast media, potentially reducing the risk of a severe reaction.

In contrast, increasing the rate of injection is more likely to exacerbate adverse reactions and should be avoided.