Screening tool to assess the fetal state of oxygenation and predicts early signs of hypoxia and...
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Transcript of Screening tool to assess the fetal state of oxygenation and predicts early signs of hypoxia and...
Screening tool to assess the fetal state of oxygenation and predicts early signs of hypoxia and fetal distress.
• Stimulus: Contractions/ fetal movements
• Baseline fetal heart rate
• Baseline variability
• Accelerations
• Decelerations
Baseline variability
Classification:
Silent 0-5 bpm
Reduced 6-10 bpm
Normal 11-25 bpm
Saltatory >25 bpm
Basal fetal oxygenation. The relationship of late decelerations to baseline fetal oxygenation during contractions
• Baseline Rate 110-150 bpm
• Amplitude of baseline variability 5/10-25 bpm
• Absence of decelerations, except for fleeting& short
• Presence of 2 or more accelerations during a 20 min period
• Baseline rate of 150-170 bpm/ 100-110 bpm
• Amplitude of variability bn 5-10 bpm > 40 min
• Increased variability above 25 bpm {saltatory}
• Absence of accelerations for > 40 min
• Sporadic decelerations of any type, unless severe