Enhance the accuracy and efficiency of your laboratory's Prothrombin Time (PT) and Activated Partial Thromboplastin Time (APTT) testing with Ci-Trol™ Coagulation Controls. This set includes 20 vials, each containing 1 mL of Level 1 control, ensuring consistent and reliable results every time. Trust in Scientific Supplies & Technology Inc. to deliver high-quality medical equipment that meet your precise scientific needs. With Ci-Trol™ Coagulation Controls, you can confidently perform critical coagulation assays with unparalleled consistency.