INTRAPARTUM ABNORMAL FETAL HEART RATE TRACING: Variability & Decelerations

INTRAPARTUM ABNORMAL FETAL HEART RATE TRACING: Variability & Decelerations Abnormal Fetal Heart Rate Tracing Fetal sleep Prematurity Medications (analgesia, sedatives) Hypoxic acidemiaCongenital anomalies Baseline Abnormality Abnormal VariabilityDecelerations Minimal/Absent Variability<= 5 bpm Marked Variability >= 25 bpm Sinusoidal Pattern Absent Accelerations Mild hypoxia Severe fetal anemia (Hgb < 70) Tissue hypoxia in fetal brain stem Hypoxic acidemia Fetal abnormality Variable decelerations Late decelerations Prolonged deceleration Cord compression Fetal acidemia if complicated variable decelerations Uteroplacental insufficiency Maternal hypotension Reduced maternal arterial oxygen saturation Hypertonic uterus Fetal acidemia Hypertonic uterus Unresolving umbilical cord compression Maternal hypotension Maternal seizure Rapid fetal descent Early decelerations Fetal head compression (mirror contractions)