Plasma? Serum?
Blood serum can be obtained by collecting a blood sample from a vein and allowing it to clot. The sample is then centrifuged to separate the serum from the rest of the blood components. Serum is the liquid component of blood obtained after clotting, which does not contain cells or clotting factors.
Blood is what a chemist would describe as an aqueous solution; the liquid part is simply water.
An SST tube will contain serum once its been centrifuged. SST stands for serum separator tube. It will separate the serum from the other blood components.
The purpose of a serum separator in a blood collection tube is to promote the separation of blood components. It contains a gel that forms a barrier between the serum and the blood cells when the tube is centrifuged. This allows for easy isolation and extraction of the serum for testing purposes.
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.
An SST (serum separator tube) contains a gel barrier that separates blood cells from serum when the tube is centrifuged. The gel allows for easier extraction of serum for laboratory testing without contaminating it with blood cells.
A red-top tube typically contains no anticoagulant. It is used for serum samples where blood is allowed to clot before being centrifuged to separate the serum.
serum is part of blood that is left after blood is clotted. when blood collected in test tube it is the part on top that does not clot, usually has a clear yellowish tint. most laboratory tests are perfomed on serum part of blood. some drs will write serum _____ level on scripts sometimes.
Clotted blood is normally obtained from a specimen of venous blood which has been allowed to clot by standing for 30 minutes. The resulting specimen is usually centrifuged to separate the clotted red blood cells from the serum.
The gel at the bottom of SST tubes is a gel separator made of a material like silicone. Its purpose is to separate the serum (liquid portion of blood) from the clot (solid portion of blood) after the blood has been centrifuged. This makes it easier to obtain a clear serum sample for testing.
A FBS (Fetal Bovine Serum) collection tube is used to collect blood samples from animals for various laboratory tests. These tubes contain a special coating that helps prevent clotting and preserve the serum for analysis. After collection, the blood is usually centrifuged to separate the serum for further testing.