Sunday, February 18, 2024

Why Does Iodine Help With Radiation

What Is The Thyroid Gland

Can iodine pills stop nuclear radiation? Why these tablets are going out-of-stock | Wion Originals

The thyroid gland is a butterfly-shaped endocrine gland that is normally located in the lower front of the neck. The thyroids job is to make thyroid hormones, which are secreted into the blood and then carried to every tissue in the body. Thyroid hormones help the body use energy, stay warm and keep the brain, heart, muscles, and other organs working as they should.

Why Do People Take Iodine Pills For Radiation Exposure

During a nuclear explosion, one byproduct is radioactive iodine . This can bioaccumulate in the thyroid and damage it or lead to thyroid cancer. One way to prevent that is to swamp the body with non-radioactive iodine so that you dont absorb the radioactive version.

It’s a bit like giving ethanol for methanol poisoning then?

Your thyroid gland takes up iodine naturally, and radioactive iodine-131 is a common waste product from nuclear plants. Taking iodine pills in a nuclear emergency basically saturates your thyroid with safe iodine so that it doesnt absorb iodine-131.

From what I gather, it’s technically Potassium Iodide, rather than elemental Iodine that is prescribed for radiation exposure.

The CDC’s page on this goes into more detail.

Basically, it can only protect the Thyroid from injury due to radioactive Iodine. It’s ineffective when there is no radioactive Iodine and doesn’t protect other organs.

The way it works is by supplying enough non-radioactive Iodine to your Thyroid that it can’t absorb any of the radioactive Iodine that you are exposed to.

What the others have said.

BTW, if you have no thyroid, like the distaffbopper, then you don’t need to take Iodine because Iodine, radioactive or not, is only taken up by the thyroid.

Description Of The Condition

Radioactive isotopes of iodine are generated in large amounts as a by-product of uranium fission, which is primarily used in nuclear reactors for energy production. In the event of a nuclear reactor accident and when radioactive material is released to the atmosphere, I-131 may be incorporated into the human body through inhalation or ingestion of contaminated food and milk . When inhaled, about 10â30 % of the radioactive iodine will primarily accumulate in the thyroid gland while the remaining amount will be discharged from the body with the urine . As part of I-131âs decay process, beta-radiation is emitted and affects the thyroid and its surrounding tissue and may lead to adverse health outcomes such as thyroid dysfunctions and thyroid cancer.

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When Radioactive Doesnt Work

If you are exposed to radioactive iodine outside of this 4 24 hours, it just will not work.

This means that if you knew when you were going to be exposed, right down to the hour, then you might be able to rely on a dose of iodine to help shut your thyroid off from harm.

But, this sort of exact timing is equal parts impractical and impossible.

Key Insight: Potassium iodide, which supplies 65% iodine, can protect against radioactive iodine, but not other radioactive elements, for a 24-hour window. That is a very small amount of time, and there are few instances where you would know about your chances of exposure that much time in advance. It is impractical, and nearly impossible!

The other wrinkle, is that the side effects of a large influx of iodine might be outweighing the preventative effects. The two major issues that this sort of dose can precipitate are:

  • Autoimmunity Issues

In fact, a large amount of iodine can shut down the thyroid in ways that make it very difficult to recover. In fact, it might not be able to come back properly at all. This may cause long-term damage to your thyroid.

What Is Radioactive Contamination

What is the benefit of taking potassium iodide during a radiological ...

Radioactive contamination occurs when radioactive material is deposited on or in an object or a person. Radioactive materials released into the environment can cause air, water, surfaces, soil, plants, buildings, people, or animals to become contaminated. A contaminated person has radioactive materials on or inside their body.

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Can Ki Be Purchased At Local Pharmacies

Yes, though it may not widely available in drug stores near you. Since it is not a prescription drug, you can buy it over the Internet. As with other drugs, make sure the KI you buy has been approved by the FDA. A supply of KI has been made available to people who live within 10 miles of a nuclear power plant in New York State. If you live within 10 miles of a nuclear power plant and did not receive KI, contact your local Office of Emergency Management.

What Is Iodine Used For How Does Iodine Work

Iodine can be effective against preventing your body from absorbing radiation. It was used for this reason after Chernobyls accidental nuclear explosion, where authorities within Ukraine and surrounding cities/countries gave them to their citizens in order to help them stay as healthy as possible against the radioactive threat.

If a nuclear explosion occurs, radioactive Iodine would possibly be released into the air and can then enter your body through your airways or through contaminated food. Your thyroid gland stores Iodine until it is saturated by it, so you could encounter radioactive poisoning .

Taking stable, non-radioactive Iodine at the right time, when instructed to by the government, will make sure that your thyroid gland is already saturated with Iodine so that you cant take any more in. That helps to prevent the absorption of radioactive Iodine.

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Assessment Of Reporting Bias

Reporting biases, including publication bias, time lag bias, multiple publication bias, location bias, citation bias, language bias, and outcome reporting bias, occur when the dissemination of research results depends on their magnitude and direction . Study quality and risk of bias of randomized controlled trials are assessed with the Cochrane risk of bias tool . Study quality and risk of bias of non-randomized quantitative studies are assessed with quality assessment tool for quantitative studies . If feasible, we will apply funnel plots for visual assessment for study effects resulting from reporting biases. When testing asymmetry in funnel plots , we will investigate whether the size of the relation between a measure of study size and the estimated intervention effect is larger than it is supposed to be . RevMan 5.3 will be used for the graphical representation of the funnel plots.

Do Iodine Tablets Prevent Radiation Sickness

Potassium Iodide (KI) and Radiation Emergencies

Not exactly, a large amount of the radiation dose from a nuclear explosion comes in the form of a radioactive isotope of iodine. You take large doses of safe iodine and that means your thyroid won’t absorb the radioactive one, and you’ll just piss it out instead of ending up with a radioactive thyroid.

So you just stock up on iodine so there’s no room left for the radioactive isotope?

What if you have Graves disease and you dont have a thyroid. Will it effect the synthetic stuff I take or absorb in a different way

This is true, we have packs of Iodine tablets in our home medical kit, Supplied by Ontario Power Generation because we live close enough to their nuclear power plant for this to be a non-zero issue.

Thats maybe a bit too simplified, and way overselling the effectiveness of iodine-pills.

The dose you would get from a nuclear explosion is dependent on an enormous number of different factors. What kind of explosion, weapon or reactor? Air burst or ground burst? How far away are you? What, if anything, is between you and the explosion? Can you escape the fallout? What are you wearing? Etc. etc.

Your thyroid gland is also most likely pretty full of iodine already if youre from a developed country. Most countries add it to table salt, and it doesnt take much before your thyroid is full of it.

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Who Should Take Ki

Since children are at the highest risk to exposure to radioactive iodine, KI should be available to all of them. Because of the risk to the fetus, pregnant women should also take KI in the event of a nuclear accident. Adults are at a lower risk but still may benefit from KI. In addition to KI, priority should be given to evacuation, sheltering and avoiding contaminated food, milk, and water. KI should not take the place of any other protective measure.

How Much Ki Do I Take

The table below shows the smallest KI dose that different age groups can take which will protect the thyroid. KI comes in liquid, 65-mg tablets and 130-mg tablets. Since it is hard to cut many pills, the State Health Commissioner says that, in an emergency, it is safe for children at school or day care centers to take the whole pill. It’s better for children under 12 years old to take the 65-mg pill, but it is safe to take the 130-mg pill if that is the only one you have. For children or babies who cannot take pills, parents and caregivers can cut or crush the pill to make lower doses, or give the liquid form of KI.

Age Group

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Description Of The Intervention And How It Might Work

The oral administration of potassium iodine is assumed to be the most effective and preventive radiation protection measure to reduce the risk of adverse health outcomes for the exposed population in the event of an accidental release of radioactive iodine . KI essentially saturates the iodide transport mechanism of the thyroid by inhibiting the intrathyroid organification of iodide , by dilution and by promoting excretion and thus, reducing the amount of committed dose to the thyroid gland, its surrounding tissue, and the body .

KI administration depends on the predicted exposure levels to the thyroid of the defined population groups . KI doses further vary to account for the respective risks of vulnerable population groups . The effective blocking of the thyroid is achieved with a dose of 130â170 mg of potassium iodine. Fractions of these quantities are to be used in specific population groups . Although KI administration blocks the thyroid gland, it does not provide complete protection from accumulating radioactive iodine. A single dose of KI approximately blocks the thyroid between 24 and 36 h but the blocking capacity decreases with increased time after administration . In the event of continuous release of I-131, repeated administration may be required to ensure prolonged protection of the general population as the protective effect of one KI dose decreases with time.

Should I Take Potassium Iodide During A Radiological Emergency

Veterinary News » Will potassium iodide prevent radiation poisoning in ...

Never take potassium iodide or give it to others unless you have been specifically advised to do so by the health department, emergency management officials or your doctor.

KI is issued only in situations where radioactive iodine has been released into the environment, and it protects only the thyroid gland. KI works by filling a persons thyroid gland with stable iodine so that harmful radioactive iodine from the release is not absorbed, reducing the risk of thyroid cancer in the future.

You should take KI only if you have been specifically advised to do so by local public health officials, emergency management officials or your doctor. It is not an anti-radiation drug.

For more information about protecting yourself and your family in the event of a radiological emergency, visit Radiological Emergency Response.

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Why Should I Take Iodine Tablets

In the event of a nuclear accident, radioactive iodine can be dispersed in the air and absorbed by the thyroid gland when inhaling contaminated air and/or ingesting contaminated food and drinks. Iodine tablets will block the absorption of radioactive iodine by the thyroid gland and reduce the risk of you contracting cancer of the thyroid gland.

Iodine tablets only provide protection against radioactive iodine and not against other radioactive substances.

The advise to take the tablets will often be accompanied by an advice to stay indoors for up to two days. It is therefore important that you store tablets at home.

Use Ki Only If Instructed

Do not take KI unless you are instructed by public health or emergency response officials or a healthcare provider. KI can cause harmful health effects. KI is helpful only in specific situations for certain groups of people.

KI should be used only as directed.

  • Do not use table salt or foods as a substitute for KI. They do not help with radiation poisoning and eating large amounts could be harmful.
  • Only use KI products that have been approved by the Food and Drug Administration . Dietary supplements that contain iodine may not work to protect the thyroid and can hurt you.
KI Is Not an Anti-Radiation Drug

Radioactive iodine contamination is mainly associated with nuclear power plant accidents. In other types of nuclear emergencies, such as a nuclear detonation, the biggest risk is external exposure to many types of radioactive materials. It is best to shelter in place for protection. Learn More

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How Iodine Pills Canand Canthelp Against Radiation

As unease about Russia’s nuclear saber-rattling grows, along with concerns about the safety of Ukraines Zaporizhzhia nuclear power plant, officials in Kyiv are distributing iodine pills to help protect residents against potential radiation exposure. In neighboring Poland, the government is also making free iodine tablets available. Likewise, in Finland, pharmacies are running out of the pills after the countrys health ministry advised households to buy them in case of an emergency.

Such measures are precautionary, but they can also put people on edge. Google searches for potassium iodidea naturally occurring type of iodine that can counteract some effects of radiationspiked at the end of February shortly after the Russian invasion of Ukraine and are trending upward again. The war has also sparked panic buying of the pills in several European countries, including Belgium, France, Bulgaria, and the Czech Republic, although intelligence experts have been at pains to point outdespite US president Joe Biden’s alarmist remarksthat there are no signs that Russia is planning to use nuclear weapons. Likewise, though the situation at Zaporizhzhia is precarious following two recent power outages, as of October 14, backup power had been restored.


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What Are The Side Effects Of Ki

Potassium Iodide Should Only Be Taken in âRadiation Emergency: CDC
  • Guidelines for Iodine Prophylaxis Following Nuclear Accidents,
  • National Council on Radiation Protection and Measurements

  • Management of Persons Contaminated with Radionuclides: Scientific and Technical Bases , National Council on Radiation Protection and Measurements, Bethesda, MD, 2010, Health Effects from Radiation Exposure , Iodine .
  • Uncertainties in Internal Radiation Dose Assessment , National Council on Radiation Protection and Measurements, Bethesda, MD, 2009.
  • Management of Persons Contaminated with Radionuclides: Handbook , National Council on Radiation Protection and Measurements, Bethesda, MD, 2008, Medical Treatments Arranged by Radionuclide .
  • Risk to the Thyroid from Ionizing Radiation , National Council on Radiation Protection and Measurements, Bethesda, MD, 2008.
  • Management of Persons Accidentally Contaminated with Radionuclides , National Council on Radiation Protection and Measurements, Bethesda, MD, 1980.
  • International Guidance

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    How Does Radioactive Iodine Treat Thyroid Cancer

    The most common types of thyroid cancer can usually be treated with large doses of radioactive iodine. The therapy is usually given after removal of the thyroid gland to destroy any remaining thyroid tissue.

    A tracer dose of radioactive iodine can also be used to track remaining thyroid tissue and/or cancer that could have spread to other parts of the body. These tests show if iodine concentrates in areas that contain thyroid cancer, and whether large amounts of RAI are needed to destroy the tumor implants.

    Can People Have Reactions To Ki

    In general, most people who have taken KI have not had any reactions . If people did have a reaction, it did not last very long. In a few cases, babies had a reaction in their thyroids. Adults who had reactions had stomach problems or a rash. The federal government thinks the benefits of taking KI are much greater than the risks.

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    Explainer: How Iodine Tablets Block Some Nuclear Radiation

    The war in Ukraine has heightened fears about nuclear exposure and interest in iodine pills that can help protect the body from some radiation

    NEW YORK — The war in Ukraine has heightened fears about nuclear exposure and interest in iodine pills that can help protect the body from some radiation.

    Concerns have grown in recent weeks over periodic power cuts to the Zaporizhzhia nuclear plant that have increased the risk of a meltdown. And threats from Russian President Vladimir Putin that he will use all means necessary to win the war in Ukraine has raised the specter of nuclear warfare.

    Some countries in Europe have started stockpiling the tablets and pharmacies in Finland began to run low on the pills after that country’s health ministry recommended households buy a single dose in case of emergency.

    But what are iodine pills? And what can they do and what can’t they do in the case of a nuclear leak or attack?

    Potassium iodide, or KI, offers specific protection against one kind exposure. It prevents the thyroid a hormone-producing gland in the neck from picking up radioactive iodine, which can be released into the atmosphere in a nuclear accident.

    This radioactive material can increase the risk of thyroid cancer if it gets into the body, for example by breathing it in or eating contaminated food. Its especially dangerous for children, and its health risks can last for many years after exposure, according to the World Health Organization.

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