thrombin

Medical term Routine Blood Collections

Clotting enzyme that turns fibrinogen into fibrin. Orange-top tubes use a thrombin-based clot activator to give serum.

Sources

• Anatomy and Physiology 2e, Chapter 18 Key Terms · OpenStax
• Nikolac N, Supak-Smolcic V, Simundic AM, Celap I. Croatian Society of Medical Biochemistry and Laboratory Medicine: national recommendations for venous blood sampling (based on CLSI H3-A6). Biochem Med 2013;23(3):242-254 (PMC3900082) · Biochemia Medica via PubMed Central

Related terms

• clot activatorAdditive that makes blood clot faster so serum can be obtained; carried over into a citrate tube, it can…
• fibrinProtein threads formed from fibrinogen during clotting that bind platelets and blood cells into a clot.
• fibrinogenA clotting protein in plasma that is converted into fibrin; plasma contains it, serum does not.
• serumThe liquid left after blood clots and is centrifuged; it lacks the clotting factors used up in the clot…
• syncopeFainting: brief loss of consciousness when too little blood reaches the brain. If it starts during a draw…
• syringeBarrel and plunger used with a needle or winged set, often for small or fragile veins; a 1 to 5 mL syringe…
• systemic circulationBlood flow from the left ventricle through the arteries to the body's tissues and back through the veins to…
• systolic pressureThe upper blood pressure number: the peak pressure in the arteries while the ventricles contract.
• thrombusA blood clot formed inside a vessel. A thrombosed vein feels hard or cordlike and is not used for…
• tourniquetBand tied 7 to 10 cm (3 to 4 in, about 4 to 5 finger widths) above the site to slow venous return so veins…

Study Routine Blood Collections

• Free Routine Blood Collections practice questions
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