A person who suspects that he or she has been exposed to radiation should have a radiation dose check, which is done mainly by a radiation meter, but also by blood tests, liver and kidney function tests. Severe radiation will have symptoms such as fatigue, dizziness, insomnia, vomiting, headache and severe hair loss. There are no ancillary clinical tests to detect being irradiated, but you can check for abnormalities in blood work, liver and kidney function. Specific testing equipment is necessary to detect radiation. The Radiation Measuring Instrument is a portable, intelligent X-γ penetrating radiation dose rate measuring instrument that uses a semiconductor detection device to give simultaneous measurement results. Women who are preparing for pregnancy and those who are within 3 months of pregnancy should have less exposure to radiation sources. After the 3rd month of pregnancy, after taking necessary precautions, relevant radiological examinations can be conducted under the advice of a doctor. If there is any exposure to radiation, the Down’s syndrome screening at 14-20 weeks of pregnancy, the 3D color ultrasound or the 4D color ultrasound at 23-26 weeks of pregnancy can detect abnormalities in the development of the fetus.