Intensity: How strong are the contractions (assessed using palpation)?.

Duration: How long do the contractions last?.Individual contractions are seen as peaks on the part of the CTG monitoring uterine activity. Next, you need to record the number of contractions present in a 10 minute period.Įach big square on the example CTG chart below is equal to one minute, so look at how many contractions occurred within 10 big squares. Oxytocin induction/augmentation of labour.Some reasons a pregnancy may be considered high risk are shown below. if the pregnancy categorised as high-risk, the threshold for intervention may be lower). This is important as it gives more context to the CTG reading (e.g. When performing CTG interpretation, you first need to determine if the pregnancy is high or low risk. The most popular structure can be remembered using the acronym DR C BRAVADO: To interpret a CTG you need a structured method of assessing its various characteristics. The CTG is then assessed by a midwife and the obstetric medical team. One transducer records the fetal heart rate using ultrasound and the other transducer monitors the contractions of the uterus by measuring the tension of the maternal abdominal wall (providing an indirect indication of intrauterine pressure). It involves the placement of two transducers onto the abdomen of a pregnant woman. The device used in cardiotocography is known as a cardiotocograph. You might also be interested in our collection of 900+ OSCE Stations, including a range of CTG interpretation and obstetric stations.

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