AWHONN Fetal Monitoring Practice Test

Uterine contractions are primarily monitored using a tocodynamometer or an intrauterine pressure catheter. The tocodynamometer, which is an external device placed on the abdomen, measures the tension of the uterus during a contraction. It detects changes in pressure, providing information about the frequency and duration of contractions.

An intrauterine pressure catheter, typically inserted into the uterus through the cervix, offers a more precise measurement of uterine pressures and contractions. This method is particularly useful in high-risk pregnancies or labor situations where detailed information is essential.

In contrast, ultrasound imaging typically focuses on visualizing the fetus and does not measure contractions directly. While cardiotocography is a term that encompasses the monitoring of fetal heart rate alongside uterine contractions, it is not a device specific to measuring contractions alone. Finally, telemetry devices, while they facilitate remote monitoring of patients, do not specifically pertain to the measurement of uterine contractions and serve broader monitoring functions. Therefore, the use of a tocodynamometer or intrauterine pressure catheter is the standard approach for assessing uterine contractions.