Strålesyge
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Death_by_haematopoietic_syndrome_of_radiation_sickness-_influence_of_dose_rate.png/220px-Death_by_haematopoietic_syndrome_of_radiation_sickness-_influence_of_dose_rate.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Death_by_haematopoietic_syndrome_of_radiation_sickness-_influence_of_medical_care.png/220px-Death_by_haematopoietic_syndrome_of_radiation_sickness-_influence_of_medical_care.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Acute-Radiation-Cell-Survival.png/220px-Acute-Radiation-Cell-Survival.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Radiation_necrosis.jpg/220px-Radiation_necrosis.jpg)
Strålesyge (eller strålingssyge) er en sygdom, der kan opstå, hvis man bliver udsat for store mængder ioniserende stråling (normalt højere end 1000 mSv) fra f.eks. kernekraftulykker, radioaktivt affald efter kernevåben og lignende.
Symptomerne skyldes en massiv ødelæggelse af celler og de organer, som har mange celler under deling rammes hårdest. Jo højere mængde stråling, jo kraftigere symptomer. [1]
Det første symptom er kvalme, som opstår inden for få timer. Senere opstår diarre som følge af, at tarmslimhinden er skadet. Den virkelig farlige del af strålingssygen tager flere uger at udvikle, som er at cellerne i knoglemarven, som er oprindelsen til de røde og hvide blodlegemer, er blevet ødelagt.
Ubehandlet kan strålingssyge medføre døden, med en populationsvægtet risiko på 50 % ved en dosis på 4000-5000 mSv.
Kilder
- Steen Hoe og Leif Sarholt-Kristensen: "Stråling og Miljø", Borgen 1989
Noter
Eksterne henvisninger
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Probability of death by the haematopoietic syndrom (bone marrow depression) of the radiation sickness as a function of received dose and medical care. The curves are log-normal law passing throw data by Anno et al. (2003). Data are averages of differents studies including dose rates from 0.1 to > 100 Gy/h.
Probability of death by the haematopoietic (bone marrow depression) syndrom of the radiation sickness as a function of received dose and dose rate. Curves are a log-normal fit to data by Haskin et al. (1997).
Proportion de survie d'une population de cellules de mammifères soumises à une dose radiative unique // Survival of a population of mammal cells when exposed to acute radiation.
It was common for the hands of the early radiologists to receive exceptionally high radiation doses. The loss of fingers, as shown in the photograph, was sometimes the result. Such conditions are ultimately caused by
outright killing of many cells. In that case, dermal basal cells and blood vessels were critically injured in
the fingers, scar tissue probably plugged the blood vessels and stopped the flow of blood. The loss of blood supply ultimately led to the death of tissue in the fingers and the loss of those extremities.