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 light-sensitive serum determinations in chemistry
Amber microtube ensures light-sensitive sample integrity providing protection for testing (ex. Bilirubin)
Available with or without gel separator
TUBE, CAPILLARY CLOT RED 200ULPLAS SAFE-T-FILL (50/BX)