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Doctor insights on: Iodinated Contrast

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Dr. Steven Griggs
62 doctors shared insights

Iodinated Contrast (Overview)

In order to show up on x-ray or ct, contrast needs to have a high atomic number and be physiologically available but not permanent! iodinated compounds satisfy these requirements, whether for intravascular or other uses. Substances like barium sulfate are ok for the gut, but not for injection into veins. In addition, kidneys clear iodinated substances from the body, showing the renal system.


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What is the definition or description of: iodinated contrast?

What is the definition or description of: iodinated contrast?

Most x-ray contrast : In order to show up on x-ray or ct, contrast needs to have a high atomic number and be physiologically available but not permanent! iodinated compounds satisfy these requirements, whether for intravascular or other uses. Substances like barium sulfate are ok for the gut, but not for injection into veins. In addition, kidneys clear iodinated substances from the body, showing the renal system. ...Read more

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Dr. Steven Griggs
62 doctors shared insights

Iodinated Contrast (Overview)

In order to show up on x-ray or ct, contrast needs to have a high atomic number and be physiologically available but not permanent! iodinated compounds satisfy these requirements, whether for intravascular or other uses. Substances like barium sulfate are ok for the gut, but not for injection into veins. In addition, kidneys clear iodinated substances from the body, showing the renal system.


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What are the symptoms or allergic reaction or risks from using iodinated intravenous contrast during CT chest scan.

What are the symptoms or allergic reaction or  risks from using iodinated intravenous contrast during CT chest scan.

Adverse Reactions...: Adverse reactions to iodinated intravenous contrast agents range from a mild inconvenience, such as rash and itching associated with hives, to a rare anaphylactic reaction (life-threatening emergency). Renal toxicity is also a known adverse reaction associated with IV contrast mostly in patients with renal insufficiency. Prior allergic reactions to contrast, asthma, and allergies are factors assoc. ...Read more

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Why does iodinated intravenous contrast for a CT scan cause a warm feeling and metallic taste in the mouth?

Why does iodinated intravenous contrast for a CT scan cause a warm feeling and metallic taste in the mouth?

Temp non harmful sid: there are two kinds basically contrast material high Osmolality and low Osmolality materials used. I would ask my radiologist this question. Usually it is a temp. Non harmful side effect. Good luck ...Read more

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Is the contrast fluid radioactive?

Is the contrast fluid radioactive?

No: No, the contrast fluid used for hysterosalpingograms does not contain any radioactive materials. ...Read more

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Does contrast dye stay in your body?

Does contrast dye stay in your body?

No: Hydrate well after the IV contrast and it will be flushed out by the kidneys, . ...Read more

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Why we don't use contrast if there are stones?

Stones: Are radio-opaque and don't need extra contrast because they light up on their own. ...Read more

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How long does contrast dye stay in your system?

How long does contrast dye stay in your system?

Depends: The rate of clearance (or excretion) depends on the renal function of the patient. In patients with normal kidney function, 50% of the injected dose will be excreted at one hour, ~83% at three hours, and almost 100% at 24 hours. ...Read more

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Contrast medium helps distinguish between the solf tissues of what?

Contrast medium helps distinguish between the solf tissues of what?

Everything: Intravenous contrast helps show blood vessels, solid organs like the liver, and improves visualization of disease like tumors and infection. ...Read more

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After drinking 3 cups of contrast and an IV contrast can I eat right after?

After drinking 3 cups of contrast and an IV contrast can I eat right after?

Yes: As long as your test was OK. I know a lady who was diagnosed with a diverticular perforation, but still took off to eat after her scan. As long as you feel like eating there should be no problems. ...Read more