Parasympathetic/Vagal innervation: - CORRECT ANSWER- ✔✔• Releases ach
• Decreases FHR and transmits variability
Early decel: - CORRECT ANSWER- ✔✔• Fetal head compression
• ->vasovagal response
Variable decel: - CORRECT ANSWER- ✔✔• Cord compression
• ->increase BP/HTN
• ->activation of baroreceptor
• ->decrease FHR, BP, and CO
Late decel: - CORRECT ANSWER- ✔✔• Inadequate uteroplacental blood flow->decreased
maternal fetal O2 transfer
• ->activation of chemoreceptors to respond due to increased PCO2, decreased PO2, and
decreased pH
• ->Fetal bradycardia and hypertension
Category I: - CORRECT ANSWER- ✔✔• Normal fetal acid base status
• All the following are required:
• Moderate variability
• Baseline rate 110-160
• Late or variable decels are absent
• Early decels present or absent
• Accels present or absent
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