NCC Certified Electronic Fetal Monitoring (C-EFM) Practice Exam

How is baseline FHR variability classified?

1. Absent, minimal, moderate, marked

2. Low, medium, high, absent

3. Stable, fluctuating, erratic, absent

4. Normal, abnormal, critical, absent

The correct answer is: Absent, minimal, moderate, marked

Baseline fetal heart rate (FHR) variability is classified into specific categories that help healthcare providers assess the well-being of the fetus. The classification includes absent, minimal, moderate, and marked variability, each indicating different levels of fetal autonomic nervous system activity and potential fetal health status. - **Absent variability** indicates no fluctuations in the heart rate, which may suggest severe fetal compromise or a lack of fetal movement. - **Minimal variability** represents slight fluctuations, typically less than 5 beats per minute, which may occur in certain situations but can also indicate potential issues with the fetal environment or wellbeing. - **Moderate variability** is characterized by fluctuations that range from 6 to 25 beats per minute and is generally considered a reassuring sign of a healthy fetus, indicating good oxygenation and a responsive autonomic nervous system. - **Marked variability** involves fluctuations greater than 25 beats per minute and can suggest a more dynamic fetal response, but may also raise concern if sustained excessively without resolution. These classifications provide essential information for monitoring fetal health during labor and delivery, guiding clinical decisions and interventions. Understanding these distinctions is crucial for effective fetal monitoring and management in obstetric care.