New York hospital scrutinized after deaths of patients

After the lab at Rockville Centre, NY-based Mercy Medical mixed up one patient's test with another woman's, the women had a double mastectomy and died due to complications from the surgery. In October 2007, the state Health Department concluded that the hospital had taken proper "corrective action" after the mix-up in the mastectomy case. But it is now investigating the hospital over the deaths of three other patients.