Vacuum Tubes (Nasmed)
Vacuum Blood Collection Tubes are sealed tubes with a pre-measured vacuum that helps draw a specific volume of blood directly from the vein. They come with different additives, indicated by color-coded caps, to suit various tests (e.g., EDTA for hematology, sodium citrate for coagulation, and clot activator tubes for biochemistry etc).
Blood Collection Needles are double-ended, with one side penetrating the vein and the other piercing the vacuum tube through a rubber sleeve. They are typically used with a holder to ensure a secure and efficient blood draw. Common sizes include 21G and 22G for adult venipuncture.
This system minimizes contamination, reduces hemolysis, and ensures precise blood collection for laboratory analysis.
Non Vacuum Tubes (Nasmed)
Non-vacuum blood collection tubes are used for manual blood collection with a syringe. Unlike vacuum tubes, they do not contain pre-measured suction; instead, blood is transferred into them after venipuncture. These tubes may have additives like anticoagulants (e.g., EDTA, heparin, sodium citrate or clot activators tubes) depending on the test requirements.
However, they require careful handling to avoid hemolysis and contamination.
Micro Tube (Nasmed)
Micro blood collection tubes are small, sterile tubes designed for collecting capillary blood samples, typically from fingersticks, heel sticks (in infants), or earlobes. They are used when only a small volume of blood is required, such as in neonatal testing.
These tubes come with various additives (e.g., EDTA, heparin, or clot activators) and are color-coded like standard collection tubes. Their small size minimizes blood loss, making them ideal for patients with difficult venous access.
Special Tubes (Nasmed)
Special blood collection tubes are designed for specific laboratory tests that require unique additives, preservatives, or materials to ensure accurate results. Unlike standard tubes, these specialized tubes help preserve sample integrity, prevent contamination, and stabilize certain components of blood for extended periods.
Examples include ACD tubes for DNA and HLA testing, Cell-Free DNA (cfDNA) tubes for prenatal and cancer screening, Trace Element tubes for heavy metal analysis, and GFC (Gel and Clot Activator) tubes for serum separation in biochemical assays.