â¢ is one of the main ingredients involved in the formation of ground-level ozone, which can trigger serious respiratory problems. â¢ reacts to form nitrate particles, acid aerosols, as well as NO2, which also cause respiratory problems. â¢ contributes to formation of acid rain. â¢
To strip the membranes your cervix must already be dilated. It can have some effect to trigger labor. Most doctors prefer to induce by 41 weeks or certainly by 42 weeks to avoid the complications of postterm pregnancy.
Your doctor may strip the membranes if you are at or past your due date to encourage labor. If the cervix has started to dilate, the doctor can slip his or her finger between the cervix and the membranes with a sweeping circular motion going all around the cervix. This releases prostaglandins and may result in cramping or the onset of contractions.