What is the main function of the fetal spiral electrode?

The main function of the fetal spiral electrode is to provide continuous and accurate monitoring of the fetal heart rate. This device is attached directly to the fetal scalp during labor, allowing for consistent, real-time data collection that is often more precise than external monitoring methods. By being in direct contact with the fetus, the spiral electrode can detect subtle changes in heart rate that may indicate fetal distress or other issues, which is crucial for timely intervention if necessary.

This advanced monitoring capability is particularly important in high-risk pregnancies or situations where precise fetal status is imperative. In contrast, other options like monitoring maternal blood pressure, assessing maternal contractions, or measuring fetal movement do not directly relate to the primary use of the spiral electrode, as its design and purpose are specifically aligned with fetal heart rate assessment.