Classification of placental abruption is supported by clinical finding as follows:
- Class 0 – Asymptomatic
- Blood clot on the maternal side of the placenta
- Class 1 – Mild
- Absence or a small amount of bleeding
- Tenderness of the uterus with sustained contraction
- Maternal blood pressure and heart rate are within normal limits
- No signs of fetal distress
Class 0 or 1 is usually associated with a partial or marginal separation.
Question: What is a term for sustained uterine contraction?