Which of the Following Contrast Media May Be Injected into a Joint

Which of the following contrast media may be injected into a joint space for radiography of the menisci, cartilage, bursae, etc.?
1) Air
2) Barium
3) Iodine contrast medium

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Correct Answer:

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