It is impossible for a mom to tell if her baby is not getting enough oxygen. At the hospital, though, a fetal heart monitor will get placed on the mom’s belly. The monitor tracks the movement and vitals of the baby, including its heart rate. This data can be used to determine if there are signs the baby is not getting enough oxygen. Late decelerations, minimal (or absent) variability, and/or no accelerations are all indications of fetal distress and hypoxia. If the doctor(s) and/or nurses do not recognize these warning signs and fail to intervene in a timely manner, the baby is more likely to suffer a permanent brain injury.