The established field measures for a person exposed to radiation are to remove them from the exposure, remove contaminated clothing and wash off any radioactive dust, and give supportive care such as fluids, wound hygiene and nutrition. There is no field treatment that changes the outcome of a large whole-body dose, and potassium iodide protects only the thyroid, only against radioactive iodine.
Part of Radiation Safety
Radiation treatment splits into two separate jobs: removing radioactive material from a person, which is possible, and supporting a body that has absorbed a dose, which can help at moderate doses and cannot undo high ones.
Tell Irradiated From Contaminated First
An irradiated person is not radioactive and poses no hazard to others. A contaminated person carries dust on skin, hair or clothing and can expose others until washed. Everything below depends on which applies; see Contamination vs Irradiation. When unsure, decontaminate: it costs little and harms nobody.
What The Parent Article Establishes
The parent article, Nuclear Safety, lists these measures:
- Remove from exposure by distance and shielding.
- Decontaminate. Remove all clothing, wash the whole body with soap and water, paying attention to hair, skin folds and under the nails. Details in Decontamination.
- Hydration. Vomiting and diarrhoea cause severe fluid loss. See Dehydration Treatment for the oral rehydration method.
- Infection prevention. The parent says white blood cells are destroyed and the patient is severely immunocompromised after 1-3 weeks, so any wound can be fatal. Keep wounds clean (Wound Cleaning) and wash hands (Hand Washing). The aim is to keep infection away from the patient. The corpus’s quarantine article, Quarantine Principles, is about the opposite direction, containing a contagious person.
- Nutrition. High-calorie, easily digested food; the gut may be damaged.
- Pain management. The parent suggests willow bark tea. See the conflict below.
- Potassium iodide. See the next section.
Potassium Iodide: Thyroid, Radioiodine, Nothing Else
Potassium iodide (KI) is not a radiation antidote. It saturates the thyroid with harmless iodine so the gland takes up less radioactive iodine, and it does nothing for any other organ, any other isotope or any external dose. It does not protect against caesium, strontium, plutonium or gamma exposure. The parent article says it is only effective within 24 hours of exposure to radioiodine, and that it is taken as 130 mg for an adult. That is an adult figure: smaller amounts are used for children, and this guide does not supply them and does not judge dosing. If a pack is labelled, follow the label; if not, do not improvise.
KI has its own risks, including allergic reactions and problems for people with some thyroid conditions (standard teaching, recalled). Iodine tincture, antiseptic iodine and iodine water-purification tablets are not substitutes and are dangerous to swallow in these amounts. A reader who believes KI is general protection will behave as though protected when they are not.
Where The Parent Article Needs A Correction
- Willow bark. Willow bark contains salicin, a relative of aspirin. Aspirin-type drugs impair clotting; a patient whose blood platelets may be falling is at risk of bleeding. The parent article lists willow bark tea for pain management. The safer reading is to avoid salicylate-type pain relief for a patient who may have marrow damage. This guide cannot supply an alternative or a dose.
- Isolation. The parent says to isolate the patient; this is to protect them, not others.
Prognosis And Honesty
At high whole-body doses, hospital measures such as blood-product support, growth factors and marrow transplant may help; none is available in the field. The honest summary is that survival at the upper bands in Dose Thresholds is poor with any care a settlement can give. Isotope-specific hospital treatments exist for caesium (Prussian blue) and plutonium (DTPA), recalled from general knowledge; neither can be improvised.
Common Mistakes
- Taking KI “for radiation”. It does nothing outside the thyroid.
- Giving untested “detox” remedies. None is established for acute radiation syndrome.
- Scrubbing skin raw. Broken skin lets contamination in.
- Treating the patient as a hazard. Fear of the irradiated patient has led people to abandon people who needed care.
Safety
The dose of any drug here is not yours to judge
Potassium iodide dosing differs by age and the parent article’s 130 mg is the adult figure. Do not give iodine in any other form. Do not give salicylate-type drugs to someone who may bleed. Call on the best-trained person available for any dosing decision.
What’s Next
- Learn next: Decontamination — how to wash people, clothing and equipment
- Combine with: Dehydration Treatment — fluid replacement for vomiting and diarrhoea