BSIP, LAURENT / SCIENCE PHOTO LIBRARY BSIP, LAURENT / SCIENCE PHOTO LIBRARY
Foetal monitor. Pregnant woman holding her abdomen, which has ultrasound sensors for a cardiotocography (CTG) machine (not seen) strapped to it. A CTG monitors her foetus' heartbeat and also records uterine contractions. The foetus' heartbeats are closely monitored during childbirth in order to detect problems like foetal distress, which occurs when the baby's oxygen supply is impaired.
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