A patient is undergoing computed tomography (CT)scanning of the brain to assess cerebral blood flow.Which of the following is the odorless, colorless, radioactive gas that is used to enhance the CT scan for this purpose?
A)Xenon
B)Radon
C)Argon
D)Krypton

Question

Quizplus · Accepted Answer

Xenon is commonly used as an inhalational contrast agent in CT scanning to assess cerebral blood flow. The patient inhales xenon gas, which acts as an intravascular tracer, allowing for the visualization and measurement of blood flow in the brain. Radon is not used in medical imaging as it is a naturally occurring radioactive gas that is a known health hazard. Argon and krypton are not commonly used in medical imaging.

A Patient Is Undergoing Computed Tomography (CT)scanning of the Brain