Computed Tomography Technologist Practice Exam

Question: 1 / 615

What is the most important indicator that a patient will have a reaction to contrast media?

Patient age

Prior reaction to contrast

The most important indicator that a patient will have a reaction to contrast media is a prior reaction to contrast. This is significant because if a patient has previously experienced an adverse reaction to contrast agents, they are at a much higher risk of having a similar or more severe reaction in subsequent administrations. This history provides valuable insight into how the patient's body has responded in the past and helps healthcare providers to take necessary precautions and choose appropriate protocols for administering contrast agents.

While factors like patient age, prenatal history, and family history of allergies can play a role in assessing risk, they do not have the same level of direct correlation to reactions from contrast media as a previous reaction does. Prior reactions serve as a concrete, individualized red flag that necessitates further evaluation and potential alternative strategies for imaging.

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Prenatal history

Family history of allergies

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