6 doctors weighed in:

Will contrast in a cat scan cause black stool?

6 doctors weighed in
Dr. Joseph Accurso
Radiology
4 doctors agree

In brief: No but see your doc!

The injected contrast is clear and mostly is eliminated by your kidneys.
The oral contrast is either clear or white. Black stool could be from bleeding, possibly from your stomach or proximal small bowel. See your health care provider asap!

In brief: No but see your doc!

The injected contrast is clear and mostly is eliminated by your kidneys.
The oral contrast is either clear or white. Black stool could be from bleeding, possibly from your stomach or proximal small bowel. See your health care provider asap!
Dr. Joseph Accurso
Dr. Joseph Accurso
Thank
Dr. Timothy Davis
Radiology

In brief: No.

The ct contrast is dilute, a small amount of either barium or iodine in a large amount of water. It shouldn't be visible in your stool.
Black tarry stools are a sign of internal bleeding. It could be a sign of colon cancer or other important problem. Ask your doctor.

In brief: No.

The ct contrast is dilute, a small amount of either barium or iodine in a large amount of water. It shouldn't be visible in your stool.
Black tarry stools are a sign of internal bleeding. It could be a sign of colon cancer or other important problem. Ask your doctor.
Dr. Timothy Davis
Dr. Timothy Davis
Thank
Dr. Mark Gujer
Anesthesiology

In brief: Not

Implicated from what i can see.

In brief: Not

Implicated from what i can see.
Dr. Mark Gujer
Dr. Mark Gujer
Thank
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