(Immunostics) These single-slide guaiac tests are used to detect fecal occult blood. Single-Slide Test HSTAT-50 is a pull-tab slide test made with the developer solution for more convenient testing. Single-Slide Tests HS-100 and HS-1000 consist of two-hole slides with positive and negative on-slide monitors. They come complete with applicators and developing solution. All slides are CLIA waived.