User Profile Sync - Fields That Appear Under the "Person or Group" Column

As I go to add a new column to a list on SharePoint 2010, I notice some fields under the drop down labeled "Show field". Inside that drop down there is a "Test" and a couple others I see in there that I don't notice in the User Profile Sync. Forgive me, I've inherited this SharePoint config. Where should I be looking to find these phantom fields or how can I erase them?

Thank you!