A review of Broward County’s pilot program that has already invested millions of taxpayer dollars into cardiac testing isn’t a universally-accepted test, has no verification that the people benefiting from it live in Broward, and doesn’t have adequate documentation for some expenses, according to a new audit. The audit, delivered to county commissioners Monday, was conducted at the behest of County Mayor Nan Rich, who had already publicly shared her disagreement with a proposal to charge residents and visitors a new sales tax to pay for the free-to-the-patient cardiac testing.