Which contrast medium is used in an MRI scan?
A) iodine
B) gold
C) gadolinium
D) barium
C
Explanation: A) Iodine is not used in an MRI scan.
B) Gold is not a contrast medium.
C) Correct! Gadolinium is a metallic element that responds to a magnetic field.
D) Barium is not used in an MRI scan.
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a. antihistamine b. corticosteroid c. vaccination d. immunosuppressant
The prefix for not is:
A. Sub- B. Di- C. Epi- D. Dia-