Skip to main content

Are MRIs safe for people with iodine allergies?

Radiology patients with iodine allergies are categorized as higher risk for complications from contrast materials used in magnetic resonance imaging (MRI) to perform diagnostic imaging procedures. Contrast agents are used to enhance imaging of the body’s internal process by producing irradiation around organs, blood vessels, and tissues just prior to MRI and other radiographic diagnostic testing. Contrast materials can be taken orally, rectally, or by intra-arterial injection.

Contrast materials having a chemical structure that includes trace minerals such as iodine, offer a naturally occurring solution. The use of iodine contrast chemical agents in inter-arterial injection of arteries, disks, cavities, and spine promotes optimal imaging.

Patients with seafood allergies should report any known adverse reaction to iodine prior to procedure. Cancer or DNA altering damage that might otherwise arise in response to a reaction to contrast materials can be avoided with proper radiology procedure.

About Iodine-based Contrast Agents

Iodine-based contrast media are classified as having ionic or non-ionic properties, each having a differing degree of solubility. Non-ionic agents tend to have fewer side-effects. Bother classes contain Monomer and Dimer type drugs.

Commonly used iodinated contrast agents:
  • DIatrizoate (Hypaque 5) 300 mgl/ml
  • Metrizoate (Isopaque 370) 370 mgl/ml
  • Ioxaglate (Hexabrix) 320 mgl/ml
Commonly used non-iodinated contrast agents (Monomer and Dimer):
  • Iopamidol (Isovue 370) 370 mgl/ml
  • Iohexol (Omnipaque 350) 350 mgl/ml
  • Ioxilan (Oxilan 350) 350 mgl/ml
  • Ippromide (Ultravist 370) 370 mgl/ml
  • Iodixanol (Visipaque 320) 320 mgl/ml

Are MRIs safe?

MRI is normally said to pose lower risk than CT scans or X-ray exams. While it is generally thought that contrast materials are safe drugs, adverse reactions are possible if a patient is predisposed to iodine allergies. Symptoms to adverse reactions to contrast materials range from mild to severe, yet severe reactions are less common. Radiology practitioners are equipped to manage side-effects in process, reducing a significant proportion of contrast material risk.

The presence of a seafood allergy places a patient at higher risk. Adverse reactions may be three times higher than in other patients. Patients reporting iodine or seafood allergy should be reviewed for a premedication regime. A seafood allergy may be distinguished from other causes or adverse intolerance to an iodine contrast agent. Topical reactions may not be a contraindication for administration of IV contrast material.

MRI side effects

Common patient side-effects to iodine-based contrast agents used in MRI procedure include:

Mild side-effects
  • nausea
  • vomiting
  • headache
  • skin itching
  • arterial flushing of skin
  • mild hives or skin rash
Moderate side-effects
  • severe hives or skin rash
  • wheezing during movement
  • abnormal heart rate
  • alteration in blood pressure (high or low)
  • shortness of breath or other breathing difficulties
Severe side-effects
  • breathing difficulties
  • cardiac arrest
  • swelling in the throat or body cavities
  • convulsions
  • extreme low blood pressure
A small percentage of MRI patients may develop skin rash occurring hours or as late as days post an imaging exam using iodine-based contrast agents. Although delayed reactions are typically mild, skin rashes may be more severe and require prescription medication for a period after the testing.

Exposed to Iodine-based Contrast Agents During an MRI Exam?

If you have been exposed to iodine-based contrast agents during an MRI or other radiology exam that have resulted in adverse symptoms or complications as a result of such a procedure a liability lawyer can help. Medical malpractice is a serious tortious grievance. The potential for long-term risk a patient’s health for improper treatment during radiology testing is high. Patients experiencing complications from iodine-based contrast materials exposure from a radiology exam have been subject to a detriment that can cause long-term pain and suffering, as well as exceptional financial cost in medical bills, as well as lost time at work.

For more information about filing a medical malpractice against a physician or radiology group, contact an attorney. You and your loved ones have a right to protection from negligence during medical treatment. Seek compensatory damages in a MRI medical malpractice case.

Popular posts from this blog

News About Phenobarbital Tablets by C.O.Truxton

Do you own a bottle of Phenobarbital Tablets by C.O. Truxton, Inc.?   Maybe you, or someone you know, has been prescribed phenobarbital tablets for sleep, or to control convulsions or seizures.

C.O. Truxton, Inc., has recalled Phenobarbital Tablets, 15mg, because someone who bought a bottle of this medication discovered the label had been placed in error on a bottle of this medication with a different dosage strength. The bottle labeled 15mg tablets was actually 30mg tablets. This mistake on the label could potentially cause someone to accidentally take an overdose of phenobarbital.

If you take an overdose of phenobarbital, it can cause:

your heart to beat too fast your breathing to be too rapid  you to become pale, weak, and sweat heavily  you to become unconscious  your kidneys to fail, leading to reduced urine, swelling of legs and feet, possibly confusion, shortness of breath you to fall into a coma you to need life-saving emergency treatment 

Even though only one mislabeled bottle…

News About Codeine and Tramadol Restrictions for Children

Earlier this year, the Food and Drug Administration warned parents against giving their young ones prescription drugs with codeine and tramadol. The agency said that the drugs could lead to severe breathing problems among the children and even death.

Codeine is indicated as a suitable drug for pain and cough while Tramadol heals pain. Codeine is also used as a cough syrup for toddlers and cold remedies. Manufactured by Par Pharmaceuticals, codeine is a generic medicine which is associated with various brands. It is usually marketed as a single ingredient drug or in combination preparations with paracetamol, aspirin, and ibuprofen.  The various combinations also pose a greater risk to children aged 12 years and below and among adolescents aged 18 years and below.  The drug is also marketed in products containing muscle relaxers. Healthcare providers are discouraged from prescribing the drug to adolescents aged between 12  and 18 years who are obese or show any other conditions that may…

Infant/Child Reduced Energy Defibrillation Electrodes News

The US Food and Drug Administration recently announced a voluntary field action on the Infant/Child Reduced Energy Defibrillation Electrodes, citing possible defects in the product. The voluntary field action for the product was carried out by Physio-Control, one of the leading defibrillator manufacturers in the country, although the product in question was manufactured by Cardinal Health. The FDA has since classified the voluntary field action as a Class 1 recall based on the artwork depiction of incorrect placement of defibrillation electrodes.

The FDA went further to state that these defibrillation electrodes, manufactured by Cardinal Health, don’t have any functional or performance defects. The only problem with these defibrillation electrodes is in their packaging, where the manufacturer displays the incorrect electrode placement on the infant’s body. These defibrillation electrodes are part of the components of Cardinal Health’s Lifepak automated external defibrillators.

The pur…