Table of Contents
What is the gel in SST?
The gel is composed of inert components, which are part of a polyester-based proprietary formulation. SST refers to the Serum Separator Tube containing clot activator and serum separator gel. PST refers to the Plasma Separator Tube containing lithium heparin and plasma separator gel.
Why is there gel in blood tubes?
After centrifugation, the inert acrylic gel at the bottom of the tube normally occupies the middle position between the cells (clot) and the serum, as its density is intermediate between theirs. The gel then serves as a barrier to diffusion, preventing contamination of the serum with cellular components.
What is Yellow Top SST gel?
SST Tube are used to collect blood for clinical biochemistry and immunology. They can improve serum surface and prevent substance exchange between blood cell and serum.
What is a gel barrier tube?
Gel-barrier Tubes. Gel-barrier (mottled red/gray, gold, or cherry red-top) tubes contain clot activator and gel for separating serum from cells but include no anticoagulant.
Do SST tubes have additives?
This tube is a plastic Vacutainer containing a clot activator but no anticoagulants, preservatives, or separator material. It is used for collection of serum for selected laboratory tests as indicated.
What color are SST tubes?
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| STOPPER COLOR | CONTENTS | VOL. |
|---|---|---|
| Gold Top (Serum Separator, “SST”) | Contains separating gel and clot activator | 6.0 mL |
| Light Blue – Yellow Label on Tube | Thrombin | 2.0 mL |
| Green | Sodium heparin(100 USP Units) | 5.0 mL |
| Tan | K2 EDTA | 5.0 mL |
Why is serum red after centrifugation?
Depending of the underlying cause, red, icteric or milky appearance are most observed discoloration of the serum or plasma after centrifugation of the sample taken for biochemistry or coagulation testing. In most of the cases, red coloration is a result of in vitro haemolysis (2).
What does the SST tube test for?
Serum-separating tubes, also known as serum separator tubes or SSTs, are used in medical clinical chemistry tests requiring blood serum.
What is a gold SST blood test for?
Specimen required: 5ml serum SST (Gold top) Tests are performed by the immunology department at St Richards Hospital. This combined test will detect auto antibodies to gastric parietal cells; mitochondria; smooth muscle and liver-kidney microsomes.
What is the gel in a separator tube?
for serum separator Serum separator tube (SST) contains a gel at the bottom to separate blood cells from serum on centrifugation. Chemistry, Immunology and Serology. BD Red-Speckled Top (10.0 mL) from serum on centrifugation Clot activator and gel for serum separator Serum separator tube (SST) contains a gel at the bottom to separate blood cells .
Why is BD Vacutainer Serum separation transport tube ( SST )?
The BD Vacutainer Serum Separation Transport Tube (SST) contains double the amount of gel compared to the regular SST tubes. This provides a thick barrier that remains intact when tubes are transported, thereby maintaining the quality of the sample for the lab analysis.
When to use red top or serum separator tubes?
a red-top tube or serum separator tube (SST). • A specimen collected in a blood collection tube with clot activator should be inverted five times to facilitate the clotting process. • Allow the specimen(s) to sit at ambient temperature until a clot has formed. – Red-top tubes may required up to 60 minutes, while serum separator tubes
What are the protein levels in gel tubes?
The mean (SD) total prot ein, albumin and globu- g/L, respectively. Serum protein electrophoresis showed significant monoclonal protein spikes in all cases. All 16 protein level of 48 (22) g/L. One sample showing abnor- mal gel barrier formation is shown in Figure 1 .