CST / Contraction Stress Test
From mdEBMwiki
[ ] Contraindicated if you dont want them contracting..
[ ] Adequate if 3 contractions lasting 40 seconds in 10 min period
- May induce with Nipple Stimulation or Oxytocin
- Nipple stimulation is usually faster
[ ] Results
- Negative (No late or significant variable decels)
- Positive (Late decels after 50% or more of ctx)
- Equivocal/Suspicious (Intermittent Lates / Suspicious Variables)
- Equivocal (FHR decel occur w/ ctx more frequent than q2 min or lasting >90sec)
- Unsatisfactory (<3ctx in 10 min or uninterpretable)
