Q1
A patient develops diffuse hives across the trunk and arms with mild wheezing after gadolinium injection. This reaction is classified as:
AA physiologic side effect
BA severe allergic reaction
CA mild allergic reaction
DA moderate allergic reaction
Q2
A patient has an eGFR below 30 and requires contrast MRI. Which agent should be used if the radiologist approves the scan?
AOmniscan (most widely available Group I agent)
BOptiMARK (clears fastest among Group I agents)
CAny agent is acceptable below eGFR 30
DGroup II macrocyclic agent such as Gadavist or Dotarem
Q3
A patient complains of pain, redness, and warmth along the vein used for gadolinium injection two hours after the MRI exam. Which local contrast complication does this describe?
APhlebitis, which is inflammation of the vein at or near the injection site
BExtravasation, which occurs when contrast leaks into surrounding soft tissue
CA systemic allergic reaction causing localized vascular inflammation
DNSF, which presents with vascular inflammation in the days after exposure
Q4
A patient reports a previous 'allergic reaction' to contrast. What is the first step?
ACancel the exam immediately
BClarify the nature and symptoms of the prior reaction
