The tissues and organs with high density in the body have less X-rays and less exposure, and the images formed are darker, and vice versa. The precautions for taking a chest X-ray are exactly the same as those for taking other parts. Wear soft clothes when filming, and there should be no high-density decorations or obstructions on the clothes, such as metal zippers, necklaces and pendants. Women should take off their underwear when filming, otherwise high-density objects will cover up the image of organisms, which will easily lead to related misdiagnosis and missed diagnosis.
Extended data
1. X-ray irradiation for general physical examination of adults shall not exceed once a year. The cancer prevention examination for middle-aged and elderly people should also be controlled within once a year.
2. Teenagers taking X-rays may affect their growth and development. If the lower abdomen and gonads are directly irradiated, it is easy to cause infertility in adults, and the risk of leukemia in children after bone marrow irradiation is greater than that in adults. Therefore, X-rays do not need to be listed as routine examinations for teenagers.
3. X-ray exposure during pregnancy may lead to fetal malformation, mental retardation of newborns, defects in hematopoietic system and nervous system, so try not to do X-ray examination during pregnancy. If you need to check the cause, it is best not to do it more than twice during the whole pregnancy.
4. If X-ray examination is needed for treatment and diagnosis, lead protective articles should be worn. Non-irradiated parts, especially those sensitive to X-ray reaction such as gonad and thyroid, should be well protected and wear protective articles. You can take the initiative to ask the doctor when you check.
5. When the X-ray machine is working, the warning indicator light on the door of the radiation room will light up. At this time, all people waiting for treatment will wait outside the protective door, and don't wait in the examination room to take pictures. Family members should not enter the examination room to accompany patients without special care to reduce unnecessary radiation.
Reference source
Baidu encyclopedia chest film