ARRT Contrast Media and Pharmacology 2

Question 1

Which route of administration delivers contrast media directly into the subarachnoid space for myelography?

Accepted Answer

Intrathecal

Answer

Intrathecal injection places contrast into the subarachnoid space to visualize the spinal cord and nerve roots during myelography.

Question 2

Barium sulfate is contraindicated when which clinical condition is suspected?

Accepted Answer

Bowel perforation

Answer

Barium sulfate is contraindicated with suspected bowel perforation because leakage into the peritoneum causes severe peritonitis.

Question 3

What type of contrast agent is used when bowel perforation is suspected and barium is contraindicated?

Accepted Answer

Water-soluble iodinated contrast

Answer

Water-soluble iodinated contrast agents are used instead of barium when perforation is suspected because they are absorbed and cleared safely.

Question 4

Gadolinium-based contrast agents (GBCAs) are primarily used with which imaging modality?

Accepted Answer

Magnetic Resonance Imaging (MRI)

Answer

GBCAs are paramagnetic agents that enhance tissue contrast specifically in MRI examinations.

Question 5

Nephrogenic systemic fibrosis (NSF) is a rare complication associated with which contrast agent in patients with severe renal failure?

Accepted Answer

Gadolinium-based contrast

Answer

NSF is a serious fibrotic condition linked to gadolinium retention in patients with severe renal impairment.

ARRT - American Registry of Radiologic Technologists Practice Test