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Do not stand behind the working monitor, all electromagnetic radiation hit it from the
back side. Everyone should take care of their health.
Question: What effect has the electromagnetic field on the human?
Answer:_______________________________________________
Task 17: Ultrasound
Ultrasound. In many countries the fetal image (developing baby) can be
prepared by ultrasonic scanning. Ultrasound is considered as a safe for both the
mother and the fetus. The doctor holds the sensor and leads them on the mother's
belly. The ultrasonic waves pass into the abdominal cavity. Inside the abdomen
waves are reflected from the surface of the fetus. The reflected waves fall back to the
sensor and transmitted to an apparatus which creates an image of the fetus. (pic.16)
Fetal image can also be obtained by using X-rays. However, for women during
pregnancy highly recommended avoiding abdominal investigation by X-rays.
Question: Explain why a woman during pregnancy should avoid abdominal x-
rays investigation?
Answer:_____________________________________________________
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