HSCT can refer to:
The High School Competency Test, or HSCT, was a test used by all public high schools in the state of Florida from the early 1980s until the implementation of the FCAT in the late 1990s. First mandated by the State Board of Education in 1977, it was the first attempt by the state to ensure that school districts across the state were being held to at least some minimal standards of accountability.
The test was administered to all public high school juniors. Passage was required in order to be issued a high school diploma. Students failing the HSCT were allowed unlimited opportunities to retake sections that they had failed, with such retests routinely administered by school faculty, thus making enforcement of the "must pass" proviso problematic, at best.
The test was phased out early in Jeb Bush's first administration, though students who entered high school before the creation of the FCAT were grandfathered in and allowed to take the HSCT instead of the FCAT, if they so wished. Even today, theoretically, a student (who would now be in their mid- to late twenties, at least) who had not graduated because of failing the HSCT can request a readministration of the test in order to get their high school diploma. In practice, such a test would probably need to be administered by a community college; many of the state's community colleges continue to use the HSCT within their adult studies departments.
Hematopoietic stem cell transplantation (HSCT) is the transplantation of multipotent hematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood. It may be autologous (the patient's own stem cells are used) or allogeneic (the stem cells come from a donor). It is a medical procedure in the field of hematology, most often performed for patients with certain cancers of the blood or bone marrow, such as multiple myeloma or leukemia. In these cases, the recipient's immune system is usually destroyed with radiation or chemotherapy before the transplantation. Infection and graft-versus-host disease are major complications of allogeneic HSCT.
Hematopoietic stem cell transplantation remains a dangerous procedure with many possible complications; it is reserved for patients with life-threatening diseases. As survival following the procedure has increased, its use has expanded beyond cancer, such as autoimmune diseases.