Scott and White Memorial Hospital could not have given a test to the blood transfused into David Autry in August 2000 that would have detected an HIV positive reaction, said Dr. Daniel J. Ladd on Monday.Ladd is vice chairman of the Department of Pathology, and medical director of the blood center at the hospital.Autry is a 51-year-old Durango, Falls County resident, who tested positive for HIV following a blood transfusion in August of 2000 during an emergency heart surgery at Scott and White."Scott and White uses certain outside suppliers for accessing blood when units are low in our own blood bank," he said. "When a unit comes in from a blood bank labeled HIV negative, the blood supplier has gone through three accepted tests for HIV".The hospital would not get a different result simply by testing it a second time, he said, even if it were in a position to run the tests.Ladd said that the hospital tests blood from its own donor room for Hepatitis "C," sexually transmitted diseases and a list of other infectious diseases. He said it sends blood samples to Blood Services Laboratory in Bedford for HIV testing because of the specialized nature of the testing.by Harper Scott Clark