Cardiotocography (CTG) is a technical means of recording (-graphy) the fetal heartbeat (cardio-) and the uterine contractions (-toco-) during pregnancy, typically in the third trimester. The machine used to perform the monitoring is called a cardiotocograph, more commonly known as an electronic fetal monitor. CTG can be used to identify signs of fetal distress.
Elastic belts x2 are put around your Bump and the monitor is attached. The upper monitor is called the "Toco" - this monitors uterine activity - it does this by pressure. It will show on the graph that the monitor prints out - if the uterus is tightening, it will also show when you cough or sneeze as it works by pressure. You are given a handheld button to press if you feel baby move and this is recorded on the graph paper. The other monitor is placed where a good signal can be obtained of baby's heart- this works via ultra sound. It gives a reading on the graph paper which the printer on the machine prints out.
The CTG prints out the graph, this gives an indication of baby's well-being. It is interpreted by trained midwives and obstetricians- and is signed by two health professional every hour to say it has been assessed and looked at. It is not a perfect assessment tool of the baby's well-being. It is only an indication. High risk pregnancies & use of the CTG in labour: