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A range of Vacutainer tubes containing blood. A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen ...
Tube inversions prevent clotting Lavender ("purple") EDTA (chelator / anticoagulant) Whole blood: CBC, ESR, Coombs test, platelet antibodies, flow cytometry, blood levels of tacrolimus and cyclosporin: Pink K 2 EDTA (chelator / anticoagulant) Blood typing and cross-matching, direct Coombs test, HIV viral load Royal blue ("navy") EDTA (chelator ...
The tubes have micronized silica particles which help clot the blood before centrifugation, and a gel at the bottom which separates whole blood cells from serum. [1] Silica nanoparticles induce coagulation through contact activation of coagulation factor XII (Hageman factor). [ 2 ]
These tubes are commonly sealed with a rubber stopper and often have a specific additive placed in the tube with the stopper color indicating the additive. For example, a blue-top tube is a 5 ml test tube containing sodium citrate as an anticoagulant, used to collect blood for coagulation and glucose-6-phosphate dehydrogenase testing. [5]
Becton's BACTEC blood culture media help detect bacterial and fungal infections in the bloodstream. ... US FDA flags shortage of Becton Dickinson's blood test tubes. July 10, 2024 at 9:53 AM ...
A second sample run with a different anticoagulant such as sodium citrate (blue top tube) to confirm the finding of pseudothrombocytopenia may be requested if there are doubts or concerns. [7] Other alternative anticoagulants are sodium fluoride , CPT ( trisodium citrate , pyridoxal 5′-phosphate and tris ), CTAD (citrate, theophylline ...
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