How much stronger is the clot formed by Arista AH compared to normal in vitro?

• A. 0% stronger.
• B. 10% stronger.
• C. 20% stronger.
• D. 30% stronger.

Answer: (C)

Arista AH works by providing a porous cellulose scaffold that concentrates platelets and coagulation factors at the wound site, speeding up fibrin formation and reinforcing the clot. In controlled lab conditions, this scaffold yields a clot about 20% stronger than a normal clot formed without the agent. That makes the 20% stronger option the best fit. The other options imply no effect, a smaller improvement, or a larger improvement than what is typically observed in vitro.