R&D Hematology
Looking for a full suite of whole blood Hematology controls and calibrators for hospitals and clinical laboratories? If so, please visit R&D Systems for a full range of products available to meet your needs!



Contact RNA Medical

7 Jackson Rd
Devens, MA 01434 USA
Sales: (800) 533-6162
Phone: (978) 772-9070
Fax: (978) 964-0537






CT 220 Blood Collection Tubes




RNA Medical® Brand Safe-Wrap Blood Collection Tubes are heparinized glass capillary devices wrapped in a puncture-resistant film. These tubes are used for the collection of capillary blood samples for the measurement of pH, blood gases and electrolytes (excluding lithium) and can hold up to 220 μL of sample. Product Description Safe-Wrap Blood Collection Tubes are glass capillary tubes that have a Mylar wrapping. The Mylar wrapping serves to minimize the risks associated with broken glass capillaries, including glass cuts and aerosol formation, by containing both the glass and the sample in the event of accidental breakage. This product is packaged in a cylinder containing 100 capillary tubes.



Availability: In-Stock

 R&D Hematology
Looking for a full suite of whole blood Hematology controls and calibrators for hospitals and clinical laboratories? If so, please visit R&D Systems for a full range of products available to meet your needs!



Contact RNA Medical

7 Jackson Rd
Devens, MA 01434 USA
Sales: (800) 533-6162
Phone: (978) 772-9070
Fax: (978) 964-0537






Quick Specs

  • Glass capillaries treated with calcium-balanced lithium heparin
  • Preferred collection material glass
  • Puncture resistant film minimizes risks of broken glass
  • Line markings for varying fill volumes and to minimize short draws
  • Regulatory compliant


Product Inserts

General Insert2026-04-30