Top
20
Doctor insights on: What If Im Allergic To Ct Dye

Share
1

1
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

See 1 more doctor answer
Dr. Lynne Weixel
1 doctor shared a insight

Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


2

2
I'm allergic to ct scan dye . What meds should I avoid ?

I'm allergic to ct scan dye . What meds should I avoid ?

None: The reaction is from the structure of the dye and not the iodine content. Low-molecular dye has a much lower frequency of allergic reaction even though it contains about the same amount of iodine. ...Read more

3

3
Am i more susceptible to having an MRI dye reaction if i did for a CT scan?

Am i more susceptible to having an MRI dye reaction if i did for a CT scan?

No: The dyes are and work in entirely different ways. However, even though not related to an allergic reaction, care must be taken in regard to both types if kidney function is impaired. ...Read more

4

4
Can you tell me if I am likely to need dye for an MRI and CT scan of my brain?

Can you tell me if I am likely to need dye for an MRI and CT scan of my brain?

It helps: Contrast (dye) often adds additional information that is useful. In the setting of acute trauma to the head contrast is often not given. When looking for clues to other neurological problems the contrast can be very beneficial. ...Read more

5

5
What to do if I have to have a CT scan how safe is the contrast dye?

What to do if I have to have a CT scan how safe is the contrast dye?

CT IV contrast : IV contrast is associated with a very low incidence of acute adverse events, and the bulk of these are not life threatening. Studies report an overall acute adverse reaction rate (allergic-like + physiologic) of 0.2%-0.7%. Serious acute reactions to IV dye are rare, with an historical rate of approximately 0.04%. FDA review demonstrated a rate of 2.1 fatalities per 1 million injections. ...Read more

6

6
I want a cardiac CT scan but am scared of allergic reaction to the dye, I have mild asthma. Can i request Benadryl (diphenhydramine) or how can I get round this?

See answer: Talk to your dr. / radiologist about the appropriate pre- procedure allergic preparation. It usually involves pre-procedure oral steroids (if you are an asthmatic already on steroids this may be modified), possibly an oral antihistamine, and may be performed in a hospital center depending on the severity of your prior iodine sensitivity. ...Read more

See 1 more doctor answer
7

7
What should I be looking for an allergic reaction to the contrast medium?

What should I be looking for an allergic reaction to the contrast medium?

Contrast medium: These include a feeling of warmth or flushing, a metallic taste in the mouth, light headedness, nausea, itching and hives. Usually, these symptoms are mild and disappear quickly. However, it is a good idea to tell the radiologic technologist if you experience any of them. In extremely rare instances, these side effects can be serious. The technologist will monitor you carefully for signs of side e. ...Read more

8

8
If I am allergic to topical iodine, can I have intrevenous iodine for a CT scan with no reaction?

If I am allergic to topical iodine, can I have intrevenous iodine for a CT scan with no reaction?

Maybe: Ct contrast agents is usually iodinated and are classifed as either ionic or non-ionic. Some are more allergy-prone than others. Ct scan contrast is totally different than MRI contrast. In contrast, MRI contrast agents usually contains chelated gadolinium. Tell the radiologist about your previous ct scan contract allergic symptoms when getting your mri. ...Read more

See 1 more doctor answer
9

9
Allergic reaction to MRI dye? I am very allergic to all sorts of things, so i'm a bit paranoid about getting an MRI done. Do you know if it's common to have an allergic reaction to MRI dye? If so, what type of bad reactions do people have? Is there a way

Allergic reaction to MRI dye? I am very allergic to all sorts of things, so i'm a bit paranoid about getting an MRI done.  Do you know if it's common to have an allergic reaction to MRI dye? If so, what type of bad reactions do people have? Is there a way

Acute : Acute allergic reactions to MRI contrast material ("dye") are rare, occuring in less than 0.1% of injections. Most reactions are mild, for example a rash, itching, or nasal stuffiness. However, some reactions are moderate or severe and require immediate medical management. Moderate reactions include shortness of breath, increased or decreased heart rate, or increased or decreased blood pressure. Severe reactions include respiratory distress, abnormal heart rhythm, seizure, or cardiopulmonary arrest. A radiologist, who is a physician who specializes in diagnostic imaging, is always available near the scanner to manage contrast reactions. There is no way to know ahead of time if you will have an allergic reaction to the dye. Potential factors that may increase your risk of an acute allergic reaction include a history of previous allergic reaction to iv-administered contrast medium (either gadolinium-containing, which is used for mri, or iodine-containing, which is used for ct), a prior allergic reaction to a substance other than contrast media, or a history of asthma. If your risk for a severe reaction is high, for example if you had a severe reaction in the past, your doctor may offer you steroids as premedication before the scan. ...Read more

See 1 more doctor answer
10

10
What can I do if i had an allergic reaction to hair dye?

What can I do if i had an allergic reaction to hair dye?

Put health before: perception of beauty. Listen to your body . Avoid any future use of that product. ...Read more

11

11
What to do if I had an allergic reaction to oxaliplatin chemo?

What to do if I had an allergic reaction to oxaliplatin chemo?

Ask: Ask your oncologist about your options. Depending on the malignancy, oxaliplatin may be your best option even after having a reaction. An Allergist can help to evaluate the reaction, and depending on its nature, suggest an effective premedication regimen or even assist with a desensitization procedure (basically fooling the immune system into accepting the drug). ...Read more

12

12
Can I get an epidural steroid injection if I am allergic to ivp dye?

Can I get an epidural steroid injection if I am allergic to ivp dye?

Yes: Some radiologists use a dye to confirm placement of the steroid injection but this is not mandatory. Just tell them about your allergy and they can perform the injection without any contrast. ...Read more

See 4 more doctor answers
13

13
What to do if I have something missed on an x-ray, mri, CT scan etc?

What to do if I have something missed on an x-ray, mri, CT scan etc?

Inform physician: Radiologists trained in imaging from residencies and fellowships usually read imaging studies. They are usually peer reviewed to avoid making errors. However they are human and can make errors.Error rate is usually universally about 3-4%. In order to improve performance of medicine providers need to be informed. In imaging as in medicine there are gray areas and everything is not black and white. ...Read more

14

14
If allergic to MRI dye will i be able to get radiation iodine for my thyroid cancer?

If allergic to MRI dye will i be able to get radiation iodine for my thyroid cancer?

It is ok: Always worth mentioning your allergy history when having a medical procedure done. But this should be ok as ablative iodine and MRI contrast should not be related. ...Read more

See 1 more doctor answer
15

15
I have to take a CT scan next week for abdomen and pelvis and need to drink barium sulfate. I am concerned about allergic reactions. are they common ?

I have to take a CT scan next week for abdomen and pelvis and need to drink barium sulfate. I am concerned about allergic reactions. are they common ?

Severe reactions: to Barium Sulfate are very rare, about 1 out of 1,000,000. Minor reactions like cramps or constipation are common and usually resolve quickly. Thanks for trusting HealthTap! ...Read more

See 1 more doctor answer
16

16
What are the chances of having a severe allergic reaction to the cat scan dye they use? 

What are the chances of having a severe allergic reaction to the cat scan dye they use? 

Low: Severe reactions to ct scan dyes are low unless you have a history of a reaction, are on certain medications that work through your kidneys or you are very dehydrated. It is always good to questions why you need the ct scan in the first place as it also exposes you to more radiation. Will the results of the scan change how you are treated?.. And that can outweigh the small risks of the procedure. ...Read more

Dr. Paul Grin Dr. Grin
2 doctors agreed:
17

17
What happens if im allergic to general anesthesia am i also allergic to an epidural?

Dr. Paul Grin Dr. Grin
2 doctors agreed:
What happens if im allergic to general anesthesia am i also allergic to an epidural?

Not necessary: General anesthesia is the administration of general anesthetic agents that make a person unconscious. It’s achieved with certain medicines that put you into a deep sleep. Just for your information, variety of the different drugs combination is available and the procedure relatively safe. An epidural is an anesthetic (lidocaine) delivered through a small tube into an epidural space. ...Read more

See 4 more doctor answers
18

18
What is the alternatives to CT and MRI scans if any?

What is the alternatives to CT and MRI scans if any?

Depends: Depending on the body part, an Ultrasound study in the hands of an experienced technologist or Doctor can give diagnostic results. Discuss with your Doctor. ...Read more

See 1 more doctor answer
20

20
Is it possible to become allergic to the iodine contrast used for CT scans if i continuously have them? Does frequency matter?

Iodine sensitivity: Yes it is possible. If you every think you do have a reaction, you should report it immediately and not get the iodine dye again. ...Read more