Examkin

Question

Difficulty: HardAnte/Intra/Postpartum and Newborn Care

A registered nurse is analyzing the electronic fetal monitoring data for a laboring primigravida at 39 weeks gestation. The physiological data indicates a baseline fetal heart rate of 145 beats per minute accompanied by moderate baseline variability. Intermittently, the tracing exhibits visually abrupt decreases in the fetal heart rate, plunging 45 beats per minute below the baseline. These specific episodes reach their nadir in 15 seconds and fully recover to baseline within 45 seconds. The occurrences appear sporadically and do not maintain a consistent temporal relationship with the onset or peak of the recorded uterine contractions. Based on this physiological data, which immediate intervention should the nurse implement?

  1. A
    Place the client in a strict supine position to maximize the delivery of supplemental oxygen.
  2. B
    Document the tracing pattern in the medical record as a benign consequence of fetal head compression.
  3. Instruct the client to shift into a lateral recumbent or hands-and-knees posture.Answer
  4. D
    Halt any labor-augmenting uterotonics and prepare to administer an intravenous fluid bolus.

Answer

The correct intervention is to instruct the client to shift into a lateral recumbent or hands-and-knees posture.
The electronic fetal monitor tracing describes variable decelerations, defined by visually abrupt decreases in the fetal heart rate (dropping from baseline to nadir in less than 30 seconds) that can occur at any time, independent of uterine contractions. These decelerations are caused by umbilical cord compression. The immediate priority intervention is to change the maternal position (such as to a lateral recumbent or hands-and-knees posture) to mechanically shift the fetus and relieve the pressure on the umbilical cord, thereby restoring adequate blood flow and oxygenation to the fetus.

Step-by-Step Solution

1
Analyze the specific characteristics of the fetal heart rate tracing.
The baseline is normal (145 bpm) with moderate variability, but there are abrupt decreases (reaching nadir in < 30 seconds) that are unrelated to the timing of contractions.
Accurately identifying the clinical criteria of the deceleration differentiates benign physiological responses from signs of fetal distress.
2
Correlate the analyzed fetal heart rate pattern with its underlying physiological etiology.
Visually abrupt decreases that vary in timing, depth, and duration relative to uterine contractions are classified as variable decelerations, which are caused by umbilical cord compression.
Linking the tracing pattern to its cause (cord compression) dictates the appropriate physiological intervention.
3
Select the highest priority nursing intervention to resolve the underlying etiology.
Maternal repositioning (such as moving to a lateral or hands-and-knees position) is the most effective immediate action.
Changing the mother's position mechanically shifts the fetus, directly relieving the physical compression on the umbilical cord and restoring fetal blood flow.

Key Concept

Interpretation of Variable Fetal Heart Rate Decelerations and Nursing Prioritization
Rate this question

Topics

Ante/Intra/Postpartum and Newborn Care

More questions from this topic