A normal blood sugar range for an adult is less than 100 milligrams per deciliter when fasting for a minimum of 8 hours, or 140 mg/dL after eating, according to WebMD. Sugar levels are usually their lowest right before mealtime when nondiabetics' sugar levels are generally around 70 to 80 mg/dL.
Placenta previa is a condition in which your placenta grows near or over your cervix (opening of your uterus). The placenta forms during pregnancy and provides oxygen and nutrition to your unborn baby. The placenta also removes waste products from the fetus.
If you have placenta previa, it means that your placenta is lying unusually low in your uterus, next to or covering your cervix.