Which vacutainer (blood collection tube) is used for blood chemistries?

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The question asks which vacutainer (blood collection tube) is used for blood chemistries, but the data provided includes no answer options to evaluate individually.

In practical laboratory practice, the most commonly used tube for many serum chemistry tests is the Serum Separator Tube (SST). This tube typically has a gold or tiger-top (silica gel) stopper and contains a clot activator. After collection, the blood is allowed to clot, then centrifuged to separate serum from cells. The gel in the SST acts as a barrier between the serum and the clot, helping to stabilize many analytes and reduce interactions with cells, which improves the reliability of chemistries performed on serum.

There are alternative tubes used for other types of chemistry testing. For example:
- Green-top tubes (lithium heparin) yield plasma useful for certain chemistry panels that require plasma or rapid turnaround.
- Gray-top tubes (fluoride/oxalate) are used mainly for glucose testing and some alcohol/smell-tout tests, not for a broad serum chemistry panel.
- Purple/top purple (EDTA) tubes are typically used for hematology (CBC) and some molecular tests, not standard chemistry panels.

If the intended correct answer is 'Serum Separator Top', that corresponds to the SST approach, which is indeed a standard choice for many serum chemistry assays due to the clotting process, serum yield, and gel separator that preserves sample integrity.

Because the answer options were not provided in the input, I cannot identify which of multiple choices is correct or incorrect beyond explaining that SST (Serum Separator Tube) is the conventional tube used for many serum chemistry determinations.

VT122 Clinical Pathology QUIZ on 1/27

Which vacutainer (blood collection tube) is used for blood chemistries?

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