Select the statement that correctly describes the mechanism of action of contrast media.
A) Contrast media are used to enhance visualization of anatomic structures by influencing tissue radiopacity with different concentrations of iodine.
B) A contrast agent works by attenuating (absorbing) the x-ray beam either more than or less than the surrounding tissue.
C) Contrast media radiopacity is related to its iodine concentration.
D) A contrast agent works by the speed of delivery affecting blood flow and hemodilution.
Correct Answer:
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Q6: What type(s)of devices,supplies,or agents are needed for
Q7: Distance is key to providing protection during
Q8: Catheters are available in a variety of
Q8: A variety of specialty items are used
Q9: Reactions to contrast media can occur and
Q12: The majority of serious reactions to contrast
Q13: Personnel radiation monitoring is an important part
Q14: Some of the new complex interventional procedures
Q15: Embolic materials induce mechanical obstruction within a
Q16: Fluoroscopy time should be limited as much
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