The Bio-Z is such an amazing test b/c it is so uninvasive. It tells exactly how effective the heart is with each beat. It will assist your cardiologist in assessing cardiac output, systemic vascular resistance, and cardiac contractility status. These are all very helpful in managing conditions such as high blood pressure and heart failure. Before the Bio-Z the only way this could be done was to place catheters inside your heart.
There will be a sticker placed on each side of your neck and below each breast. There will be two wired coming from each sticker that will resemble an EKG. This is a completely painless procedure and it doesn't take very much time.
Here is a link with detailed info on Bio-Z. http://goliath.ecnext.com/coms2/gi_0199-2129179/CMS-USES-BIOZ-FOR-DIAGNOSIS.html