The client in end-stage liver failure is experiencing esophageal bleeding. The healthcare provider has prescribed vasopressin (Pitressin). Which statement is the scientific rationale for administering...

The client in end-stage liver failure is experiencing esophageal bleeding. The healthcare provider has prescribed vasopressin (Pitressin). Which statement is the scientific rationale for administering this medication?

1. It lowers portal pressure by venodilation and decreased cardiac output.

2. Vasopressin produces constriction of the splanchnic arterial bed.

3. This medication causes vasoconstriction of the coronary arteries.

4. Vasopressin causes the liver to decrease in size and vascularity.