Safe-T-Fill Capillary Blood Collection Tube Serum Tube Clot Activator Additive 10.8 X 43.7 mm 300 L Red Attached Cap Plastic Tube

Features

• Pre-assembled with a capillary straw, attached pierceable cap, and a microtube
• 100% plastic tubes collect microliter volume capillary blood samples from finger and heel sticks
• Blood samples are drawn into the microtube through capillary action, reducing hemolysis, tissue contamination, and re-draws. No "scooping" or "milking" required
• Capillary straw and microtube are coated with a clotting activator (Red Cap) to facilitate clotting
• Attached cap is color-coded to designate the type of additive that is in both the capillary tube and the microtube
• Lot Number, Expiration Date, and fill lines are printed directly on the microtube
• A complete end-to-end fill of the capillary straw accurately measures the stated fill volume
• For serum determinations in chemistry
• Available in a variety of sizes and draw volumes, with or without gel separator