Some specimens require the plasma or serum to be pipetted into an aliquot tube, while others can be poured over. Always check the specimen requirements in the Test Catalog …

Dec 19, 2013 · Plasma samples should be centrifuged after at least 30 minutes but maximum 120 minutes after blood collection. Serum samples should be centrifuged after at least 60 minutes …

Jun 24, 2024 · Centrifuging blood samples is a crucial step in medical laboratory testing. The recommended speed and duration for centrifuging blood samples in the United States can …

When the tube of blood is removed from the centrifuge, the components have separated into three layers: blood serum, the buffy coat containing platelet cells, and red blood cells. Blood …

Aug 26, 2025 · For blood sample separation, common speeds range from 1,000 to 3,500 RPM, and centrifugation times often vary between 10 to 15 minutes, depending on the specific …

Shaking tubes can break fragile red cells and release analytes from the cells into the serum/plasma. Immediate mixing assists with clot activation in serum tubes and …

Label and mix tube(s) gently as per your usual practice. IMPORTANT - The sample MUST be allowed to clot completely by standing tube(s) vertically in a rack for at least 30 minutes prior …

Gently invert the tube 8-10 times, and let tube sit in an upright position for at least 15-30 minutes at room temperature to allow the blood to clot. (Serum separator tubes contain a clot activator …

For this procedure, a patient’s whole blood is spun to isolate the buffy coat. This is then highly concentrated to achieve a platelet count three to ten times higher than normal, creating a …

Some blood tubes require centrifugation, or spinning, to separate components of the blood for further analysis. Not spinning these tubes can lead to inaccurate test results, affecting patient …