Not much, the rays emitted by CT will directly kill normal white blood cells, and may reduce the number of white blood cells, but the killing effect of CT is not very large, and doing a CT will not bring symptoms to the body.
CT belongs to a computerized x-ray tomography scanning technology, the human gonads, eye crystals, thyroid and mammary glands for the ray is very sensitive, if a long time and large doses of irradiation, may lead to the occurrence of cataracts, slowed down the growth and development of amenorrhea, and even induce malignant tumors or leukemia.
Expanded
There are many advantages to doing a CT exam, the density resolution is very high, and it can directly show some of the lesions of the organs that can not be shown by x-ray examination. However, you can't eat any food or lose glucose for 8 hours before the test, and you should avoid doing strenuous exercise. Pregnant or breastfeeding women and diabetic patients should tell their doctors in advance.
After the test is over, you should drink more water, which can speed up the excretion of drugs. Not all people are suitable for CT examination, such as severe renal function and renal impairment, hyperthyroidism, renal insufficiency, severe malignant disease and serious lesions, asthma eczema and other allergic lesions can not be done.
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