Match each intrapartum fetal heart rate (FHR) tracing description and its accompanying maternal clinical scenario with the most appropriate targeted intervention.
- FHR baseline of 175 bpm with minimal variability in a patient with ruptured membranes and a temperature of 38.9°C (102.0°F)Maternal antipyretic therapy and broad-spectrum antimicrobial administration
- Sudden drop in FHR lasting 4 minutes following initiation of neuraxial analgesia; maternal blood pressure is 80/45 mmHgIntravenous vasopressor administration
- Repetitive, abrupt drops in FHR to 80 bpm lasting 30-40 seconds, occurring independent of contractionsIntrauterine instillation of normal saline via an intrauterine pressure catheter
- Six uterine contractions in a 10-minute window with associated gradual FHR decreases that reach their nadir after the contraction peakCessation of synthetic oxytocin infusion and consideration of a beta-agonist
- A smooth, undulating sine-wave-like FHR baseline oscillating at 4 cycles per minute following significant maternal blunt traumaImmediate preparation for emergent delivery and neonatal resuscitation
Cevap
The correct matches align each fetal heart rate tracing abnormality with the intervention that directly addresses its underlying pathophysiologic mechanism.
Each correct pairing links a distinct clinical and FHR presentation to the intervention that directly resolves the underlying maternal-fetal physiologic disturbance. By addressing the root cause (e.g., restoring maternal blood pressure, relieving mechanical cord compression, or resolving tachysystole), fetal oxygenation can be effectively restored.
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Anahtar Kavram
Intrapartum FHR abnormalities indicate specific physiologic stressors (e.g., cord compression, uteroplacental insufficiency) that dictate targeted resuscitative interventions.