Amles
There is no way to prevent PKD. Below is some info that may be useful to you. If you need any more help or info just ask.

PKD can be diagnosed in unborn babies using a test called amniocentesis (analysis of the amniotic fluid that surrounds the baby) or a test called chorionic villus sampling (examination of a small piece of the placenta). However ttese procedures have a chance of causing spontaneous abortion (about 1-2%)
The most common symptom of PKD is high blood pressure. Other symptoms are:
Pain in the back and side
Blood in the urine
Frequent kidney infections
Not all people will have all of these symptoms.
Usually, at least one parent must have the disease for a child to inherit it. In 25 percent of cases, there may be no family history of PKD. These cases are new mutations in a family. In very few cases, autosomal dominant PKD occurs spontaneously after conception. Parents who do not have PKD would not be at an increased risk to have additional children with PKD. But individuals with PKD have a 50/50 chance of passing the gene on to their children.
Hope this helps


Alan (Midwife)