病例介绍患者男,34岁。因上腹部间歇性疼痛七年,伴黑便五天入院。诊断胃小弯溃疡出血。患者原有磺胺类药物过敏史。查体:意识清,贫血貌。呼吸18次/min,脉搏86次/min,血压14.6/9kPa。上腹部压痛(+),反跳痛(一)。给予输液,止血治疗,应用甲氰咪胍600mg静滴,200mg肌注,半小时后患者自觉下颌及颈部 Case description Male patient, 34 years old. Intermittent pain due to the upper abdomen for seven years, accompanied by melena five days admitted. Diagnosis of gastric ulcer bleeding. Patients with previous history of allergy to sulfa drugs. Examination: Consciousness, anemia appearance. Breathing 18 times / min, pulse 86 beats / min, blood pressure 14.6 / 9kPa. Upper abdominal tenderness (+), rebound tenderness (a). Give infusion, hemostatic treatment, application of cimetidine 600mg intravenous infusion, 200mg intramuscular injection, half an hour later patients consciously mandibular and neck