FREE MRSO GBCA Safety & NSF Screening Questions and Answers

Question 1

Which patient condition represents the most significant risk factor for developing Nephrogenic Systemic Fibrosis (NSF)?

Accepted Answer

Acute kidney injury or severe chronic kidney disease

Answer

Chronic liver disease or cirrhosis

Answer

A history of severe allergic reactions to iodinated contrast

Answer

Diabetes mellitus with normal renal function

Question 2

According to the ACR Manual on Contrast Media, for which group of patients is a recent eGFR assessment most critical before administering a GBCA?

Accepted Answer

Patients with a history of hypertension, diabetes, or age > 60 years

Answer

All patients over the age of 50

Answer

All pregnant patients

Answer

Any patient receiving a GBCA for the very first time

Question 3

GBCAs are classified into groups based on risk. Which group has been associated with the vast majority of documented NSF cases?

Accepted Answer

Group I (Linear agents)

Answer

Group II (Macrocyclic agents)

Answer

Group III (Newer agents with limited data)

Answer

All groups carry an identical and negligible risk

Question 4

What is the current FDA understanding of gadolinium retention in patients with normal renal function?

Accepted Answer

Trace amounts of gadolinium can be retained in tissues like the brain and bone

Answer

Gadolinium is completely cleared from the body within 24 hours

Answer

Retention is a theoretical risk that has not been proven in humans

Answer

Retention only occurs in patients who go on to develop NSF

Question 5

What is the general recommendation regarding the use of GBCAs in pregnant patients?

Accepted Answer

Use only if the diagnostic information is essential and cannot be obtained by other means

Answer

GBCAs are strictly contraindicated in all trimesters of pregnancy

Answer

It is considered completely safe to use after the first trimester

Answer

The standard adult dose can be used without any special consideration

Question 6

A 68-year-old patient with a history of diabetes is scheduled for a contrast-enhanced MRI. Their chart shows a normal eGFR from 10 months ago. What is the most appropriate action?

Accepted Answer

Require a new creatinine/eGFR measurement before administering contrast

Answer

Proceed with the scan, as a previous normal test is on file

Answer

Administer a half-dose of a Group II GBCA to be safe

Answer

Cancel the scan and recommend a non-contrast study instead