RUTH JENKINSON / MIDIRS / SCIENCE PHOTO LIBRARY RUTH JENKINSON / MIDIRS / SCIENCE PHOTO LIBRARY
Foetal monitoring during labour. Midwife checking on a woman in early labour who is attached to a cardiotocography (CTG) machine (far left). The foetus' heartbeat is picked up by an ultrasound scanner strapped to the woman's abdomen and printed by the CTG machine. The machine also records uterine contractions. The foetus' heartbeats are closely monitored during childbirth in order to detect problems such as foetal distress, which occurs when the baby's oxygen supply is impaired.
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