患者,女,75岁,因“呕血2d”于2016年11月27日入院。患者入院前晚9时许在家睡觉时出现呕血数次,呈暗红色,含有血凝块,量多,无黑曚晕厥,无便血,无腹痛,无发热,无头痛头晕。当夜由家属带至我院急诊就诊,查血常规:WBC 11.2×10~9/L,HB 134g/L,PLT 163×10~9/L,血糖7.4mmol/L, The patient, female, 75 years old, was admitted on November 27, 2016 due to “hematemesis 2d”. Patients at 9 o’clock in the evening before going to bed at home when hematemesis occurred several times, dark red, with blood clots, quantity, no black flesh syncope, no blood in the stool, no abdominal pain, no fever, no headache and dizziness. In the night, my family members were taken to our emergency department to check the blood routine: WBC 11.2 × 10 ~ 9 / L, HB 134g / L, PLT 163 × 10 ~ 9 / L, blood sugar 7.4mmol / L,