What is the stated purpose of thrombin in an activator tube?

What is the stated purpose of thrombin in an activator tube?

• A. To speed up clotting
• B. To prevent hemolysis
• C. keep blood in Natural State and prevents clotting
• D. To separate serum from cells

Answer: (C)

Thrombin in an activator tube is there to speed up clot formation. It acts as a clotting activator by converting fibrinogen to fibrin, which makes the blood clot faster so serum can be separated more quickly. This is why speeding up clotting is the stated purpose. It doesn’t prevent hemolysis—that would be about protecting red cells, not promoting clotting. It also isn’t about keeping blood in a natural state and preventing clotting—that would require an anticoagulant, not thrombin. And the primary role isn’t to separate serum from cells by itself—the separation follows clot formation.

Thrombin in an activator tube is there to speed up clot formation. It acts as a clotting activator by converting fibrinogen to fibrin, which makes the blood clot faster so serum can be separated more quickly. This is why speeding up clotting is the stated purpose. It doesn’t prevent hemolysis—that would be about protecting red cells, not promoting clotting. It also isn’t about keeping blood in a natural state and preventing clotting—that would require an anticoagulant, not thrombin. And the primary role isn’t to separate serum from cells by itself—the separation follows clot formation.