患者,女,18岁。因6个月前口服鼠药(具体药名不详)后出现口腔出血、腹痛、血尿入院,入院诊断为鼠药中毒。经急诊洗胃、导泻、利尿、保护脏器、血液透析、维生素K1解毒等治疗病愈出院。5个月前患者开始出现双下肢膝关节以下皮肤淤斑,一侧小腿疼痛肿胀,凝血酶原时间(PT)示,部分凝 Patient, female, 18 years old. Due to oral administration of rat poison 6 months ago (specific drug name unknown) after oral bleeding, abdominal pain, hematuria hospitalized, admitted to hospital for rat poisoning. The emergency gastric lavage, catharsis, diuretic, protect the organs, hemodialysis, vitamin K1 detoxification and other treatment of patients discharged. Five months earlier, the patient developed a skin ecchymosis below the knee joint, a painful swelling of the lower leg, prothrombin time (PT), and partial coagulation