Centrifuge tube- With some needle assemblies, you can slide the collection tube into the holder while gently pushing the tubes forward until the needle touches the stopper. Always use the correct vacuum tube for tests that require a specific anticoagulant (such as EDTA, heparin, sodium citrate, etc.) or preservative. When frozen plasma is required, place the plastic transport tubes immediately in the freezer compartment of the refrigerator and tell your professional service agent that you have a frozen sample to collect. If multiple tests are ordered that require frozen serum, a plastic transport tube should be prepared for each test.
Blood cells are suspended in plasma, which consists of water and dissolved materials, including hormones, antibodies, and enzymes that are transported to tissues, as well as cellular waste products that are transported to the lungs and kidneys.
What is the recommended centrifuge tube temperature range for System II?
When using a benchtop centrifuge, use a balancer tube of the same type that contains an equivalent volume of water. Patients with abnormal coagulation due to illness or patients receiving anticoagulant therapy require more time for complete clot formation. Centrifugation creates a gel barrier between the plasma and the cellular components of the blood. The tubes contain silica to activate sample coagulation and a gel that creates a barrier between the clot and the serum after centrifugation.
Serum or plasma should be separated from cells within 2 hours of collection to avoid erroneous test results.
What is BD Vacutainer used for?
Vacutainers have the advantage that they are manufactured with additives that allow multiple pipes to be removed easily and have a lower chance of hemolysis. Vacutainer tubes may contain additives that stabilize and preserve the sample before analytical testing. A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper that creates a vacuum seal within the tube and makes it easier to draw a predetermined volume of fluid. Vacutainer technology was developed by Joseph Kleiner in 1947 and is currently being marketed by Becton Dickinson (B-D).
What is the minimum clotting time for an SST tube?
After proper centrifugation, the serum may be left in contact with the gel barrier of the SST tubes for up to 5 days if stored properly.