Most products for blood collection are now designed for safety and collection enhancement. The evacuated (vacuum) tube method is considered to be the most direct and efficient way to collect a blood sample because it aspirates blood from the arm directly into the tube. The adapter (holder or barrel) is a plastic safety device that covers the needle and tube during the collection process. It allows one end of the needle to pierce the skin and the other end to pierce the tube.
Q: [Needle] - A slender, pointed, hollow, metal device [Image]
Q: [Venipuncture] - Puncture of a vein for any purpose [Image]