They contain a special gel that separates blood cells from serum as well as particles to cause blood to clot.
Red marble blood tube.
Plastic tube 13 x 100 16 x 100.
Any of a number of blood collection tubes which contain a special gel that separates cells from serum and material that causes clotting.
The red bottle is less common it is used for biochemistry tests requiring serum which might be adversely affected by the separator gel used in the yellow bottle.
Sps tubes have a paler colour sometimes leading confusion.
Also a clot tube eg red top tube or gel barrier that does not clot should be brought to the attention of the physician.
The list below lists the most commonly used blood collection tubes their additives and uses in laboratory.
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Excessive bleeding longer than five minutes should be brought to the attention of the physician.
It contains a clot activator.
Pink top tube edta this tube contains edta as an anticoagulant.
Tubes with orange or gray yellow tops are used to test serum that is needed.
These tubes can be used for blood bank tests.
There are two kinds of sst tubes.
Gold or red gray marble stopper two types sst serum separator tube.
One tube has a gold stopper and the other has a red gray marble stopper.
Trademarked versions include covidien corvac tubes.
Gold or red gray tube also known as a tiger tube that contains a clot activator.
Polymer gel and powdered glass clot activator.
Red top tube glass this tube is a plain glass vacutainer containing no clot activators anticoagulants preservatives or separator material.
These tubes are used to separate the blood cells from the serum.
The blood is then centrifuged allowing easy removal of serum for testing.
Hemogardtm gold top conventional red gray marble.
Tubes with a red stopper are used to collect serum to test for routine donor screening or infectious disease.
It is used to separate blood from the serum.
The tube must be inverted five times following blood collection.
Marble top tubes are also referred to as tiger tops in some clinics.
These tubes are preferred for blood bank tests.
After drawing blood observe proper venipuncture techniques to prevent continued bleeding and or hematoma.
These tubes have a clot activator on the glass and a polymer gel as the separator.
