Arista AH is not indicated for which bleeding scenario?

• A. Diffuse oozing from capillary surfaces.
• B. Mild venous oozing.
• C. Brisk arterial hemorrhage.
• D. Bleeding controlled with backup hemostatic measures.

Answer: (C)

The concept here is that Arista AH functions as an adjunct hemostatic aid best suited for low-pressure, diffuse bleeds rather than high-flow arterial bleeds. It helps by providing a scaffold and concentrating clotting factors to speed up clot formation in slow oozing from capillaries or small veins, which is why it’s appropriate for diffuse capillary oozing and for mild venous oozing. When bleeding is brisk and arterial, the pressure and flow are too great for a topical agent to achieve rapid, definitive control, so such a bleed requires immediate mechanical control or surgical repair. Arista AH can be used as an adjunct after some initial control or alongside backup measures, but it’s not indicated for brisk arterial hemorrhage.