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 heart rate

 Baseline variability  Classification:  Silent 0-5 bpm  Reduced 6-10 bpm  Normal bpm  Saltatory >25 bpm

 accelerations

 Deceler ations:

Decelerations Types:

Basal fetal oxygenation. The relationship of late decelerations to baseline fetal oxygenation during contractions

Contraction Stress Test

Signature + Date & Time

DEFINEDEFINE RISKRISK CONTRACTIONSCONTRACTIONS BASELINEBASELINE RATERATE VARIABILITYVARIABILITY ACCELERAT’NACCELERAT’N DECELERAT’NDECELERAT’N OVER ALL ASSESS MENT

Baseline Rate 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 bpm/ 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

Baseline heart rate 170 bpm Variability 40 min Recurrent decelerations of any type Severe variable or late decelerations A sinusoidal pattern Any of the following: