In US: For Research Use Only. Not for Use in Diagnostic Procedures. LA Positive Control Plasma Kit is a set of lyophilized quality control plasmas, weak and high positive, for use in Lupus Anticoagulants in vitro clotting assays. This kit is optimized for being used the HEMOCLOT™ LA-S and HEMOCLOT™ LA-C Assays (ACK090K-RUO / ACK091K-RUO).