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

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BlackTom AI · Accepted Answer

The question asks which vacutainer (blood collection tube) is used for blood chemistries. 
Since there are no answer options provided, I will discuss the typical tube choices and identify which type is used for chemistry.
First, consider the common vacutainer colors and their typical use cases:
- Tiger top (serum separator tube, SST): contains a gel barrier and clot activator; it yields serum after centrifugation and is widely used for clinical chemistry panels because it provides a clean serum sample with minimal interference for many biochemical tests.
- Red top (plain serum tube) can also be used for chemistry, but without a gel separator it may take longer to separate and might have more potential for clotting-related issues if not allowed to clot properly.
- Lavender top (EDTA): this is used for hematology tests (e.g., complete blood count) and is not ideal for most serum chemistry panels because EDTA can interfere with some assays.
- Green top (heparin): used for plasma chemistry when plasma is preferred over serum; however, plasma chemistry can be appropriate for certain tests, but many standard chemistry panels are performed on serum rather to avoid anticoagulant interference.
- Gray top (sodium fluoride/potassium oxalate): used for glucose testing and some glycolytic stability contexts; not the standard tube for an overall general chemistry panel.
Given the goal of a general blood chemistry panel, the typical preferred tube is the serum separator tube (SST), commonly referred to by the nickname “Tiger top.” This tube yields serum after clotting and centrifugation, and the separator gel helps produce a clean serum sample suitable for many chemistry assays.
If an option list existed, the correct choice would identify a SST/Tiger top as the tube used for chemistry tests. The other tubes (lavender, green, gray, etc.) are associated with other specialties or specific assays and are not typically the default for routine serum chemistry panels.
Note: Since the provided data lacks answer options, this explanation covers why SST/Tiger top is used for blood chemistries and how other vacutainer colors differ in their typical applications.

VT122 (Assignment) Post Lab Activity: Clinical Pathology I & II - DUE 1/27 BY MIDNIGHT

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

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