American College of Obstetricians and Gynecologists. Labor, delivery and postpartum care FAQ070. 205: Vaginal birth after cesarean delivery. American College of Obstetricians and Gynecologists.Choosing the route of delivery after cesarean birth. Will you need to be induced? Having labor induced decreases the likelihood of a successful VBAC.A home delivery isn't appropriate for VBAC. Where will you deliver the baby? Plan to deliver at a facility equipped to handle an emergency C-section.Do you have any health concerns that might affect a vaginal delivery? A C-section might be recommended if you have placental problems, your baby is in an abnormal position, or you're carrying triplets or higher order multiples.When did you last give birth? The risk of uterine rupture is higher if you attempt VBAC less than 18 months after your previous delivery.How many C-sections have you had? Many health care providers won't offer VBAC if you've had more than two prior C-sections.Electrolyte estimation by auto analyzer usually takes 20-30 minutes. Venous blood gas (VBG) analysis is a safer procedure and may be an alternative for ABG. Have you had previous vaginal deliveries? A vaginal delivery at least once before or after your prior C-section increases the probability of a successful VBAC. Aims: Arterial blood gas (ABG) analysis is a frequently ordered test in intensive care unit (ICU) and can analyze electrolyte in addition to pH and blood gases.Have you had other surgeries on your uterus? If you've had other uterine surgeries, such as for fibroid removal, VBAC isn't recommended due to the risk of uterine rupture.Have you ever had a uterine rupture? If so, you're not a candidate for VBAC.If you've had a prior high vertical (classical) incision, VBAC isn't recommended because of the risk of uterine rupture. Women who have had a low transverse or low vertical incision are usually VBAC candidates. What type of uterine incision was used for the prior C-section? Most C-sections use a low transverse incision.VBAC eligibility depends on many factors.