Multiple Choice
Positive contrast agents
A) have high atomic numbers.
B) appear opaque on radiographs because of the degree of attenuation.
C) have a tendency to absorb X-ray photon energy to a great extent.
D) All of the above are correct.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: A responsible medical imaging professional will always
Q3: A radiopharmaceutical is<br>A) a contrast agent.<br>B) any
Q4: An undesirable characteristic of ionic contrast agents
Q5: When a nonionic contrast agent is injected
Q6: A double-contrast study of the colon is
Q7: For select examinations,air (negative contrast)and radiopaque contrast
Q8: All of the following are true of
Q9: When using any type of contrast agent
Q10: Negative contrast agents<br>A) are opaque to the
Q11: The osmotic effects of ionic contrast agents