For whole blood hematology (hematology) determinations
100% plastic, 2.1 x 113 mm tubes collect microliter volume capillary blood samples from finger and heel sticks.
Pre-assembled with a capillary straw, attached pierceable cap, and a microtube
The complete end-to-end fill of the capillary straw accurately measures the stated fill volume.
Capillary straw and microtube are coated with anticoagulant dipotassium K2 EDTA to prevent clotting.
Attached cap is purple 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.