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dose
(redirected from threshold dose)

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In comparison with stochastic effects, deterministic effects are a lesser cause of concern in diagnostic radiology as they occur above a certain threshold dose, which is relatively high and can be avoided by having astute radiologists who monitor changes in the patient's skin during the examination and change the X-ray beam projections.
Normally, we use an effective dose of 10 rem to the fetus during the first 6 weeks postconception as a threshold dose to consider recommendation for therapeutic abortion.
In favour of the idea of a threshold dose, it can be argued that the passage of a single nuclear particle through a cell, the lowest possible dose, can cause DNA double strand lesions.
 
 
 
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