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Contraction Stress Test
Aka: Contraction Stress Test, Oxytocin Challenge Test
- See Also
- Fetal Assessment
- Fetal Testing Indications
- Fetal Heart Tracing
- Cost: $250
- Technique
- Oxytocin (Pitocin)
- Start: 0.5 to 1.0 mU per minute
- Titrate: increase 1 mU every 20 minutes
- Goal: 3 Contractions every 10 minutes
- Nipple Stimulation
- Contraindications
- Absolute
- Placenta Previa
- Preterm Prolonged Rupture of Membranes (PPROM)
- Cerclage
- Incompetent Cervix
- Relative
- Multiple Gestation
- History of classic Cesarean Section
- Interpretation
- Negative (Normal)
- Adequate contractions:
- Three contractions in 10 minutes
- Each contraction lasts 40 seconds
- No Late Decelerations
- Positive
- Repetitive, persistent Late Decelerations
- Decelerations with more than half of contractions
- Not due to uterine hyperstimulation
- Management
- Negative Contraction Stress Test
- Reassuring for fetal well being for 7 days
- Follow daily Fetal Kick Counts
- Positive Contraction Stress Test
- Hasten fetal delivery