Montevideo units for measurement of uterine activity include:
Increased is uterine pressure (mm of Hg) x number of contractions every 10 minutes Increase in uterine pressure (mm of water) x number of contractions every 10 minutes Increased in uterine pressure (cm of water) x number of contractions every 10 minutes Increase in uterine pressure (cm of H20) x number of contractions every 20 minutes