Do you mean "Blood plasma"?
During plasmapheresis, blood is initially taken out of the body through a needle or previously implanted catheter. Plasma is then removed from the blood by a cell separator. Three procedures are commonly used to separate the plasma from the blood cells: * Discontinuous flow centrifugation: One venous catheter line is required. Typically, a 300 ml batch of blood is removed at a time and centrifuged to separate plasma from blood cells. * Continuous flow centrifugation: Two venous lines are used. This method requires slightly less blood volume to be out of the body at any one time as it is able to continuously spin out plasma. * Plasma filtration: Two venous lines are used. The plasma is filtered using standard hemodialysis equipment. This continuous process requires less than 100 ml of blood to be outside the body at one time. http://en.wikipedia.org/wiki/Plasmapheresis
Blood plasma is serum that hasn't had the clotting factors separated. Like serum, it contains no blood cells.
A red top tube typically contains serum after the blood has been separated by centrifugation. Plasma is obtained from blood collected in tubes with anticoagulants.
The serum is a cell free fluid which forms when the blood has clotted and the thombus has separated from it.Since the blood group deciding antigens are present on the RBC's which are not present on the serum .Hence,it can be transcribed to anyone without the need of blood testing.
For serum creatinine, the recommended tube to use is a red-top tube without any anticoagulant. This allows for the blood to clot and the serum to be separated.
They help the blood sample in the tube clot so that serum can be separated for analysis. Serum is the preferred specimen for many tests such as hormones, proteins and electrolytes.
For titers, blood can be collected in a red-top tube (serum separator tube) or a gold-top tube (serum separator tube with gel). The serum is then separated from the blood cells by centrifugation and used for the titer test.
You are probably seeing the serum separator gel. After the blood in the tube clots, they spin it to separate the clot from the remaining fluid (serum). The gel will move in between the clot and the serum so they stay separated.
They help the blood sample in the tube clot so that serum can be separated for analysis. Serum is the preferred specimen for many tests such as hormones, proteins and electrolytes.
Horse serum is typically obtained by collecting blood from horses and separating the serum from the blood cells either by allowing it to clot or by centrifugation. The serum is then purified to remove impurities and is often used in laboratory research and medical applications. It is important to ensure ethical treatment of the horses during the blood collection process.
To obtain serum, the coagulated blood is left to clot at room temperature for approximately 15 to 30 minutes. After it is completely clotted, it is rimmed using an applicator stick and then centrifuged for approximately 5-10minutes at 2500 revolutions per minute. Then the supernatant fluid is separated.
Blood Serum is the liquid portion of a blood clot.
Separated blood actually has three layers - the red layer made of the erythrocytes, the buffy layer made of all the white blood cells and a liquid yellow layer on top consisting of all the fluid and proteins in the blood.