[pavulon]

Would imagine you have seen the below from the March of Dimes website but will offer it up. As for your sister, there is no amount or worry that will produce another umbilical artery. However, there is plenty of damage that can result from worry. She really needs to morph her worry into gratitude for the situation she hoped for!! She is paying the medical professionals to worry so let them.



What is a single umbilical artery?
Single umbilical artery is when one artery in the umbilical cord is missing. It happens in about 1 in 100 singleton pregnancies (1 percent) and about 5 in 100 multiple pregnancies (5 percent). A singleton pregnancy is when you’re pregnant with just one baby. A multiple pregnancy means you’re pregnant with more than one baby (twins, triplets or more). We don’t know what causes single umbilical artery.

About 2 in 10 babies (20 percent) with a single umbilical artery have health problems, including heart, kidney or digestion problems and genetic conditions. Digestion is the process of how your body breaks down food after you eat. A genetic condition is caused by a gene that’s changed from its regular form. A gene can change on its own, or the changed gene can be passed from parents to children.

If an ultrasound shows that you have a single umbilical artery, your provider may recommend checking your baby’s health during pregnancy with these tests:

A detailed ultrasound of your baby
Amniocentesis. In this test, your provider takes some amniotic fluid from around your baby in the uterus (womb). The test checks for birth defects and genetic conditions in your baby. You can get this test at 15 to 20 weeks of pregnancy. Birth defects are health conditions that are present at birth. They change the shape or function of one or more parts of the body. They can cause problems in overall health, in how the body develops or in how the body works.
Echocardiogram. This is a special ultrasound that check’s your baby’s heart.