This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
[{'content': "Shaswat, A67-year-old male comes to the physician's office complaining of severe pain in the right foot with paleness of right toe. The patient had a history of receiving unfractionated heparin 7 days back. The hemogram of the patient is as shown below: Hb 13.2 g/dL WBC 10000/mm3 Platelet 50000/mm3 Which of the following should be used to treat this condition? \nSelect and explain. \nA. High dose of Heparin, B. Platelet infusions, C. Argatroban, D. Warfarin", 'role': 'user'}, {'content': "Answer: C \nExplanation: (Ref: Katzung 11/e p592) It is a case of heparin induced thrombocytopenia (HIT). Four 'T' are used to suspect the diagnosis of HIT: Hrombocytopenia Timing of heparin administration (5-14 days) before developing thrombocytopenia Thrombosis OTher causes of thrombocytopenia not evident. DOC for HIT is direct thrombin inhibitors like argaroban.", 'role': 'assistant'}]