Which uterine activity assessment can be recorded using a tocodynamometer?

A tocodynamometer is a device specifically designed to measure uterine activity during labor, and it is particularly effective at recording the frequency of contractions. It operates by using a pressure-sensitive transducer placed on the mother's abdomen, which detects changes in pressure associated with uterine contractions.

When assessing contractions, frequency refers to how often the contractions occur within a designated time frame, typically measured in minutes. The tocodynamometer provides accurate data on the timing of contractions, allowing healthcare providers to monitor the labor process effectively.

While the device does provide some insight into the duration and, to a lesser extent, the intensity of contractions, its primary function remains focused on the frequency aspect. The intensity, which measures how strong the contractions are, is generally assessed through other methods, such as intrauterine pressure catheters or clinical palpation.

Resting tone refers to the baseline activity in the uterus when it is not contracting and is not effectively captured by a tocodynamometer alone. Thus, the correct choice highlights the specific capability of the tocodynamometer in quantifying how often contractions recur, making it an essential tool in fetal heart monitoring during labor.