The S-Monovette® is an enclosed multiple-sampling blood collection system that enables gentle blood collection from any vein or access line without sample transfer to minimize hemolysis, clotting and QNS. S-Monovette® tubes can be gently filled by manual aspiration to minimize shear stress associated with vacuum tubes, particularly when used in combination with I.V. catheters. Compared to untreated syringes, S-Monovettes contain a range of additives and can be processed directly with no transfer, maintaining a closed connection. S-Monovette® tubes are available in ultra-low volumes ideal for pediatric populations and better patient blood management.