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Acute radiation syndrome (ARS), also known as radiation sickness or radiation poisoning, is a collection of health effects that are caused by being exposed to high amounts of ionizing radiation in a short period of time. [1] Symptoms can start within an hour of exposure, and can last for several months.
Some patients received skin dose of 400–500 Gy. The infections caused more than half of the acute deaths. Several died of fourth degree beta burns between 9–28 days after dose of 6–16 Gy. Seven died after dose of 4–6 Gy and third degree beta burns in 4–6 weeks. One died later from second degree beta burns and dose 1-4 Gy. [44]
The risk of systemic infection is higher when the organism has a combined injury, such as a conventional blast, thermal burn, [3] or radiation burn. [2] There is a direct quantitative relationship between the magnitude of the neutropenia that develops after exposure to radiation and the increased risk of developing infection. Because no ...
The exposure to 4.5 Gray of penetrating gamma rays has many effects that occur at different times: In 24 hours: [10] vomiting; diarrhea; These will usually abate after 6–7 days. Within 3–4 weeks there is a period of extreme illness. [10] severe bloody diarrhea, indicating intestinal disorders causing fluid imbalance; extensive internal bleeding
Radiation proctitis can occur a few weeks after treatment, or after several months or years: Acute radiation proctitis — symptoms occur in the first 3 months after therapy. [4] These symptoms include diarrhea and the urgent need to defecate.
The lower threshold for chronic radiation syndrome is between 0.7 and 1.5 Gy, at dose rates above 0.1 Gy/yr. [3] This condition is primarily known from the Kyshtym disaster, where 66 cases were diagnosed. It has received little mention in Western literature; [3] but see the ICRP’s 2012 Statement. [4]
COVID-19, pertussis (aka whooping cough) and varicella (chicken pox) are just some of the vaccinations you can get to reduce your odds of getting sick and greatly reduce your chances of serious ...
To determine if the microenvironment is altered as a result of radiation, an animal study was performed by Fike et al. where highly enriched, BrdU labeled, non-irradiated stem cells from a rat hippocampus were implanted into a hippocampus that was irradiated one month prior. The stem cells were allowed to remain in the live rat for 3–4 weeks.