In liver disease, which factor level is typically increased?

In liver disease, which factor level is typically increased?

• A. factor VII
• B. factor VIII
• C. factor IX
• D. factor X

Answer: (B)

Factor VIII levels tend to be increased in liver disease because this factor is produced by vascular endothelium (not primarily by the liver) and acts as an acute-phase reactant. In liver disease, hepatic synthesis of most coagulation factors (like those that are vitamin K–dependent) diminishes, leading to lower levels of factors such as VII, IX, and X and a longer prothrombin time. Factor VIII, however, remains relatively preserved or rises, in part aided by increased von Willebrand factor from endothelial cells, which stabilizes factor VIII in circulation. This creates a situation where factor VIII is higher while other hepatic factors are reduced, contributing to the characteristic rebalanced but fragile hemostasis seen in liver disease.

Factor VIII levels tend to be increased in liver disease because this factor is produced by vascular endothelium (not primarily by the liver) and acts as an acute-phase reactant. In liver disease, hepatic synthesis of most coagulation factors (like those that are vitamin K–dependent) diminishes, leading to lower levels of factors such as VII, IX, and X and a longer prothrombin time. Factor VIII, however, remains relatively preserved or rises, in part aided by increased von Willebrand factor from endothelial cells, which stabilizes factor VIII in circulation. This creates a situation where factor VIII is higher while other hepatic factors are reduced, contributing to the characteristic rebalanced but fragile hemostasis seen in liver disease.