Psychiatric Technician Practice Exam 2026 - Free Practice Questions and Study Guide

Vitamin K is crucial for the synthesis of certain clotting factors in the liver, which are necessary for proper blood coagulation. When an individual takes oral anticoagulants, such as warfarin, the action of these medications can lead to a decreased production of vitamin K-dependent clotting factors, resulting in a higher risk of bleeding.

In instances where there is excessive anticoagulation leading to bleeding disorders, administration of vitamin K can effectively reverse the effects of these medications. It replenishes the body’s supply of vitamin K, allowing for the production of clotting factors to resume, thereby promoting normal blood clotting processes.

In contrast, the other vitamins listed do not play a direct role in managing bleeding disorders caused by anticoagulant overdoses. Vitamin D is associated with calcium metabolism and bone health, Vitamin E is an antioxidant that protects cell membranes, and Vitamin A is important for vision and immune function, but none are involved in the coagulation cascade impacted by anticoagulant therapy. Therefore, vitamin K is the appropriate choice for this clinical scenario.