This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Use of anticoagulant is 
Select and explain. 
A. Venous thrombosis, B. Aerial thrombosis, C. Vitamin K toxicity, D. Hea failure
A: Venous thrombosis
Answer: A: Venous thrombosis 
Explanation: Ans. is'a'i.e., Venous thrombosisRef : Katzung /e p. 599; l$hle p. 554Prophylaxis for venous thrombus:Heparin (unfractionated, LMW, or fondaparinux) and oral anticoagulants (warfarin).