Final answer:
Symptoms of a Warfarin overdose include excessive bleeding, ranging from nosebleeds to severe internal bleeding. The antidote for a Warfarin overdose is Vitamin K, which can be administered intravenously for faster action.
Step-by-step explanation:
The signs and symptoms of a Warfarin overdose primarily revolve around bleeding, as Warfarin's main effect is to prevent blood clotting. These symptoms can range from minor issues, such as nosebleeds, bleeding gums, and increased bruising, to more significant problems like hemorrhaging, blood in urine or feces, and severe internal bleeding. In severe cases, there can be signs such as blood in vomit, profound weakness, dizziness, or headaches, indicating possible intracranial bleeding. The recognized antidote for a Warfarin overdose is Vitamin K, often given intravenously in severe cases to restore normal blood clotting more quickly than oral administration would. Additionally, blood or plasma transfusions may be used in the case of severe bleeding to replenish clotting factors and stabilize the patient.