https://www.phlebotomyusa.com/blog/phlebotomy/which-color-tube-for-what-test/
Gold Top Tube. Also known as a Serum Separator Tube (SST), the gold-top tube has a gel that separates the serum from cells after spinning it. It's great for tests that need serum quickly, like: Hormone Levels; Infectious Disease Tests; Vitamin Levels . Green Top Tube. Green top tubes contain heparin, an anticoagulant perfect for chemistry

https://www.ephlebotomytraining.com/phlebotomy-tubes-explained/
Green Top Tube. Phlebotomy tubes with green top contain sodium herapin, lithium herapin and ammonium herapin, all of which are coated in the inside of the tube. The herapin anticoagulant activates antithrombins that block the coagulation cascade and produce a plasma sample or whole blood. The same tubes are used for clinical chemistry and STAT

https://www.labcorp.com/resource/blood-specimens-chemistry-and-hematology
Blue-top tube (also light blue-top tube): Contains sodium citrate. Be sure to use only tubes with a 3.2% sodium citrate concentration. These are easily identified by the yellow diagonal stripes on the label. Use: Sodium citrate plasma. Send plasma in a plastic transport tube labeled "Plasma, Sodium Citrate." Send whole blood in a blue-top

https://phlebotomyu.com/what-color-tubes-are-used-for-which-tests-in-phlebotomy/
Green Top. Green-topped phlebotomy tubes have either ammonium heparin, lithium heparin, or sodium herpin coatings on their inside surfaces. These anticoagulants activate anti-clotting agents in the blood, blocking coagulation cascades. They are suitable for either plasma or whole blood. These tubes are usually used for: STAT chemistry; Clinical

https://laboratoryinfo.com/common-blood-collection-tubes-their-additives-and-laboratory-uses/
Lavender. 6. Grey. 7. Royal Blue. 8. Black. Most blood collection tubes contain an additive that either accelerates clotting of the blood (clot activator) or prevents the blood from clotting (anticoagulant). The list below lists the most commonly used blood collection tubes, their additives and uses in laboratory:

https://www.phlebotomynow.co/understanding-phlebotomy-tube-colors/
The type of tube used depends on the specific test being performed. Here's a breakdown of the most common phlebotomy tube colors and their uses: Gray top. glucose, blood alcohol levels. Lavender/Purple top. CBC, differential white blood cell count. Green top. chemistry panels, blood gas analysis. Red top.

https://www.needle.tube/blog/guide-for-blood-draw-tube-colors
Green Top Tubes. Green top tubes, also known as mint green tubes, contain the anticoagulant heparin for tests that require plasma, such as chemistry panels and electrolyte testing. Heparin inhibits thrombin formation and prevents blood clotting by activating antithrombin. These tubes are available in lithium, sodium, or ammonium heparin

https://microbeonline.com/blood-collection-tubes/
The Gold Top (SST-Serum Separator Tube) and Plain Red Top Tube should be mixed 5-6 times because they contain a clot activator. The Green Top (PST-Plasma Separator Tube) is preferred if listed. In summary. The color of the tube and the anticoagulant added to it is as follows:

https://www.ncbi.nlm.nih.gov/books/NBK555991/
Laboratory tube collection is a process applied when withdrawing blood samples from patients before they get tested in the laboratory. It follows the principle, which is most commonly known as the "order of draw." Different tests and biochemical assays require varying types of sample collection tubes. The reason why tubes are color-coded is for practical and easy identification.

https://wetrainphlebotomists.com/understanding-updated-phlebotomy-tube-color-chart-and-test-associations/
Test tubes are different colors to indicate specific additives - red for anticoagulants, gold for clot activator and gel, green for requesting immediate blood chemistry results, and grey for containing potassium oxalate to bind calcium. Each of these additives is necessary for proper testing.

https://www.cliniciansbrief.com/article/selecting-right-blood-collection-tube-diagnostic-testing
Blood collection tubes are distinguished by top color, which identifies tube additives. Tube additives prevent or activate clotting and determine the final blood product (eg, whole blood, serum, plasma) submitted for testing. Anticoagulant tubes include lavender (purple), green, and light blue. Tubes with red and red/gray (marble or tiger) tops

https://bitesizebio.com/23701/choosing-the-right-blood-collection-tubes/
Plasma is the product of blood that has been prevented from clotting with an anticoagulant. Therefore, You need to use either a serum collection tube or a plasma collection tube, respectively. 1. Serum Tubes. Blood serum is a great (and stable) way of measuring the blood's proteins, lipids, hormones, electrolytes, etc.

https://www.needle.tube/tube-colors-and-blood-tests
Green Top Tube: Additive: Heparin (anticoagulant) Common Tests: Plasma tests, ammonia levels, STAT electrolytes (with lithium heparin) Gray Top Tube: Additive: Sodium fluoride (for glucose) and potassium oxalate (anticoagulant) Common Tests: Glucose, lactate, blood alcohol levels. Dark Blue Top Tube: Additive: Buffered sodium citrate.

https://clevelandcliniclabs.com/laboratory-resources/specimen-collection-transport/collection/blood-collection-tubes/
Blood collection tubes are part of the Evacuated Tube System (ETS) for collecting blood specimens. All tubes contain a premeasured amount of vacuum. When the multiple sample needle system is used, blood is pulled directly from the patient's vein into the tube. When the vacuum has been expended, the blood will stop flowing.

https://www.pathology.uci.edu/services/specimen-containers.asp
Light green-top tube (lithium heparin) This tube contains lithium heparin and gel separator used for the collection of heparinized plasma for routine chemistry tests. NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen. Dark green-top tube (sodium

https://www.bd.com/en-us/products-and-solutions/products/product-families/bd-vacutainer-blood-collection-tubes
BD Vacutainer plastic tubes. BD Vacutainer plastic tubes offer a safe method of blood collection and reduce the potential for tube breakage and specimen spillage, thereby reducing the potential for exposure to bloodborne pathogens. BD is the inventor of BD Vacutainer® blood collection tubes as well as the worldwide leader in blood tubes.

https://www.wellspanlabs.org/client-support/collection-devices/blood-collection-tubes/
GREEN TOP Contains Lithium Heparin as anticoagulant. Available in 13 x 75 with 4 mL volume draw and 13 x 100 with 6 mL volume draw. Sterile plastic tube. Invert 8-10 times to facilitate mixing and prevent coagulation. GREEN TOP - To be used for leukocyte typings and chromosome studies. Contains Sodium Heparin as anticoagulant.

https://www.boundtree.com/iv-drug-delivery/blood-collection-sets-tubes/green-top-blood-collection-tubes/p/group000513
Green Top Blood Collection Tube contains Sodium Heparin or Lithium Heparin. Vacutainer ® brand sterile chemistry tubes with the Hemogard™ closure help to protect lab personnel from contact with blood on the stopper or around the outer rim of the tube, as well as from blood splattering upon opening the tube. The rubber stopper is recessed inside the plastic shield, so any drops left by a

https://www.bd.com/en-us/products-and-solutions/products/product-families/bd-microtainer-blood-collection-tubes
Overview. BD Microtainer® blood collection tubes are designed for ease of use, helping ensure that a quality capillary blood sample is collected. These wider-diameter tubes feature the BD Microgard™ closure, which has an integrated collection scoop and improved mixing ability. This full array of microcollection tubes is available for

https://www.labcorp.com/tests/322758/metabolic-panel-8-basic
Red-top tube or green-top (lithium heparin) tube is acceptable. Collection. Draw blood in a gel-barrier tube and centrifuge. If red-top tube or green-top tube is used, centrifuge within 45 minutes of draw, remove the serum or plasma, and place in a transport tube and tightly stopper the tube.

https://www.vet.cornell.edu/sites/default/files/blood_tubes_and_labeling_guidelines.pdf
green top tube. This sample should be labeled with the owner name, animal ID, and the words "heparinized plasma". This sample should be kept cool. This sample can be submitted for many toxicology tests including copper, iron, nitrate/nitrite, zinc, and pre-purchase drug screens. Also this sample

https://www.labcorp.com/tests/303754/electrolyte-panel
Red-top tube or green-top (heparin) tube is acceptable if centrifuged within 45 minutes and the serum or plasma is removed and placed in a tightly-stoppered secondary tube. Collection. Separate serum or plasma from cells within 45 minutes of collection; avoid hemolysis. Storage Instructions. Room temperature.

https://www.thermofisher.com/us/en/home/references/protocols/cell-and-tissue-analysis/elisa-protocol/elisa-sample-preparation-protocols/plasma-and-serum-preparation.html
TOP. Serum preparation. Collect whole blood in a covered test tube. If commercially available tubes are to be used, the researcher should use the red topped tubes. ... Heparinized tubes (green tops) are indicated for some applications; however, heparin can often be contaminated with endotoxin, which can stimulate white blood cells to release

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