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Doctor insights on: Allergic Reaction To Iodine Contrast

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Allergic reaction to the contrast dye for cat scan?

Allergic reaction to the contrast dye for cat scan?

See below: Allergic reaction to ct scan contrast may range from mild skin rash and itching to severe skin rash and cardiac arrest. Patients at risk are those with previous adverse reactions to iodine-based contrast materials, history of asthma, history of allergy. Contrast reaction may be reduced or prevented if appropriately treated before the scan, but this is not 100%. ...Read more

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Dr. John Chiu
2,586 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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What's an allergic reaction to cheap metal?

What's an allergic reaction to cheap metal?

Often to nickel: The skin can get red itchy and bumpy...Stop wearing it and if not severe(or infected) try cortisone cream(not benadryl) and avoid the jewelry..If it happens with several pieces, bring them to an allergist with a description of the reaction(and maybe picures). The testing can often be done. ...Read more

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Any allergic reaction to ketalar (ketamine)?

Agitation,: Hallucinations in some, flushing, increased heart rate are common side effects. All drugs can cause allergic reactions in rare circumstances including rash, hives, swelling of the tongue, difficulty breathing and death. ...Read more

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What ingredients in neosporin can an allergic reaction?

What ingredients in neosporin can an allergic reaction?

Neosporin: Neosporin is a very common allergen, as is Bacitracin (both are very commonly used). Interestingly, neither is better than vaseline at preventing infection, but both are usually better at treating one. So, if you have a scratch, simple use of vaseline (or equivalent) is best to prevent an infection, and save the antibiotics for a proven infection. Stop using neosporin if it causes a rash for u. ...Read more

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Can juvederm reaction cause an allergic reaction?

Can juvederm reaction cause an allergic reaction?

Yes: It would be an extremely rare instance since the main component is hyaluronic acid which is present as a protein in your cells. However there is a rare instance that you are allergic. There is no allergy testing required for HA drugs ...Read more

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Is there an allergy testing for contrast dye. I'm allergic to shellfish. Thanks?

Is there an allergy testing for contrast dye. I'm allergic to shellfish. Thanks?

Unrelated: There is a common misunderstanding that one can be allergic to iodine yet this is incompatible with life -our thyroid hormone production depends on it. You are allergic to the muscle protein in shellfish and not to the iodine. The contrast dye reaction is from the molecular structure of the dye which releases histamine. You are not at higher risk for a dye reaction because of a shellfish allergy ...Read more

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Symptoms of allergic reaction to antihistmine ?

Symptoms of allergic reaction to antihistmine ?

That's curious....: Allergic reactions are when the body's immune system detect something that it recognizes as a foreign substance (ingested, contact through skin, food or medicine, or in the case of auto-immure diseases, it's own cells). One reax is to mobilize cells that secrete anti-histamines to fight the allergic reax. So, allergic relax to antihistamine would be very unusual. Let detective doc sort this out. ...Read more

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Pls describe an allergic reaction to a sandostatin (octreotide) shot...

Pls describe an allergic reaction to a sandostatin (octreotide) shot...

Sandostatin (octreotide) Effects.: Side effects that you should report to your doctor or health care professional as soon as possible: allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue, changes in blood sugar, changes in heart rate, severe stomach pain. Diarrhea, nausea, vomiting, hair loss. ...Read more

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Allergic reaction to all cephalosporins possible?

Allergic reaction to all cephalosporins possible?

Yes: Allergy to the entire class of antibiotics called cephalosporins is indeed possible. That allergy would be the common part of the molecule shared by all cephalosporins and penicillins, the beta-lactam ring. ...Read more

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Allergic reaction to anesthesia, what to do?

Allergic reaction to anesthesia, what to do?

Find out details: It is unclear to which drug you are allergic to. Anesthesia is combination of pain relief, reversible unconsciousness, immobility, and amnesia (forgetting of event). There are many different drug combination that can lead to anesthesia. And many of the drugs are very different from each other. So try to find out what you are allergic to, and have md try alternatives. ...Read more

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Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Depends: on the reaction, if just hives and itching, yes benadryl (diphenhydramine) can control it in the right dosage, after discontinuing the offending drug, but if more severe symptoms/swelling you need medical attention with the possible addition of epinephrine and probably steroids, ...Read more

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What happens if you get an allergic reaction to the contrast dye for CT scan?

What happens if you get an allergic reaction to the contrast dye for CT scan?

See below: With iodinated based contrast you may get allergic reaction ranging from mild skin rash to severe rash, difficult breathing, severe drop in blood pressure and even cardiac arrest. Patients at risk are those with previous reaction, history of asthma or allergy. Please consult with your doctor. ...Read more

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Allergic reaction (possible anaphylaxis) after allergy testing, what to do?

Allergic reaction (possible anaphylaxis) after allergy testing, what to do?

Allergy testing: Only physicians trained in the specialty of allergy, asthma ; immunology are trained in a monitored situation during residency to perform skin testing for ige-mediated allergy. Some ENT programs are adding this to their training. If you were skin tested by a non-specialist, consult a specialist, if you were skin tested by an allergist, it is likely that you are unusally allergic. ...Read more

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Is it safe to use an epipen (epinephrine) for an allergic reaction to ppd?

Is it safe to use an epipen (epinephrine) for an allergic reaction to ppd?

Symptoms?: What are your symptoms? A PPD can cause a large local reaction, but not a systemic reaction that requires epinephrine. ...Read more

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Can vomiting be an allergic reaction from injesting personal lubricants?

Can vomiting be an allergic reaction from injesting personal lubricants?

Vomiting: Please rephrase question and give details on what personal lubricants you are referring to, and how do you get this into the stomach. ...Read more

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What is an alternative to iodine used in CT with contrast? Say, someone is allergic to shellfish....What is an alternative contrast to use?

What is an alternative to iodine used in CT with contrast? Say, someone is allergic to shellfish....What is an alternative contrast to use?

Reaction to contrast: Contrast media reactions are often described as allergy but in truth are not allergy. The high concentration of the contrast can shock cells called basophils into releasing their granules filled with histamine. This causes the same reaction as the histamine release due to allergy. Shellfish allergy has nothing to do with iodine or contrast. Low osmolality contrast & premedication helps. ...Read more

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Dr. John Chiu
1,033 doctors shared insights

Allergic Reaction (Definition)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ...Read more