Which organ is primarily affected by anticoagulant poisoning?

Anticoagulant poisoning primarily affects the liver due to the role this organ plays in producing clotting factors that are essential for blood coagulation. Anticoagulants, such as warfarin or brodifacoum, work by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver. These factors include prothrombin and the factors VII, IX, and X, which are crucial for normal blood clotting processes. When anticoagulants interfere with their production, it leads to an increased risk of bleeding, as the blood's ability to clot is compromised.

In cases of anticoagulant poisoning, the liver's impairment to synthesize these clotting factors can result in serious hemorrhagic events, making it the central organ affected by this type of poisoning. Understanding this mechanism highlights the importance of the liver in maintaining hemostatic balance and the potential consequences when its function is disrupted by anticoagulant substances.

The other organs mentioned, although important in different contexts, are not primarily involved in the coagulopathy resulting from anticoagulant poisoning as the liver is.