Older HIV antibody tests were significantly less able than newer tests to detect low levels of HIV antibodies in a personâs blood, which is why in the past the window period was set at 6 months. Across Canada, all labs use newer, more sensitive antibody tests (this includes rapid (point-of-care) HIV tests).
Category 4 pressure ulcers and reduce the cost. burden to the Trust. The cost of treating a Category. 4 pressure ulcer has previously been estimated to. be Â£10.5511, however these costs will vary across. Healthcare settings and the aim of this study was to. determine the cost of treating a hospital acquired.
Between 1993 and 2006, the number of hospitalized patients with pressure ulcers (PUs) increased by > 75%, a rate over 5 times the increase of hospital admissions overall. The rate increased most in patients who developed PUs during hospitalization.