system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All are true bout Oral anticoagulants EXCEPT:
assistant
The correct answer is  Ans. (b) Acts both in vivo and in vitro* ORAL ANTICOAGULANT is warfarin. It is used only in vivo (body), NOT in vitro (lab).* Warfarin is not used to store blood.* It acts by inhibiting Vitamin K. Due to overdose, hematuria is the First manifestation noted.* Dose monitoring is done by INR.* Antidote of warfarin overdose: Vitamin KPT (Prothrombin Time)aPTT (activated Partial Thromboplastin Time)* Assess activity of Extrinsic coagulation pathway* Used when on warfarin treatment* WePT: Warfarin for extrinsic; PT value assessed.* Assess activity of Extrinsic coagulation pathway.* Used while on heparin treatment.* HINT: Heparin for Intrinsic; aPTT value assessed.