What is a significant marker of fetal compromise during labor?

What is a significant marker of fetal compromise during labor?

• A. Stable FHR with variability
• B. Persistent late decelerations
• C. Intermittent accelerations
• D. Variable decelerations

Answer: (B)

Persistent late decelerations are a significant marker of fetal compromise during labor because they indicate a pattern of decreased fetal heart rate (FHR) that correlates with uterine contractions. This pattern suggests that the fetus may be experiencing insufficient blood flow or oxygen during contractions, which can lead to fetal hypoxia and distress. Late decelerations occur after the peak of a contraction and return to baseline after the contraction has ended, signifying that the issue is not a transient response but rather an indication of ongoing physiological stress on the fetus. In contrast, stable FHR with variability shows that the fetus is generally well-oxygenated and not under significant stress. Intermittent accelerations are also reassuring signs, as they indicate fetal well-being and responsiveness. Variable decelerations, while also important to assess, are typically associated with cord compression and may resolve without significant fetal compromise, depending on their frequency and duration. Therefore, persistent late decelerations unequivocally signify greater concern regarding fetal well-being during labor.

Persistent late decelerations are a significant marker of fetal compromise during labor because they indicate a pattern of decreased fetal heart rate (FHR) that correlates with uterine contractions. This pattern suggests that the fetus may be experiencing insufficient blood flow or oxygen during contractions, which can lead to fetal hypoxia and distress. Late decelerations occur after the peak of a contraction and return to baseline after the contraction has ended, signifying that the issue is not a transient response but rather an indication of ongoing physiological stress on the fetus.

In contrast, stable FHR with variability shows that the fetus is generally well-oxygenated and not under significant stress. Intermittent accelerations are also reassuring signs, as they indicate fetal well-being and responsiveness. Variable decelerations, while also important to assess, are typically associated with cord compression and may resolve without significant fetal compromise, depending on their frequency and duration. Therefore, persistent late decelerations unequivocally signify greater concern regarding fetal well-being during labor.