吕某,男,3岁。1972年6月20日以口鼻出血、皮肤紫斑、黑便5天入院。现病史:发病前3天玩耍时误将窗台上的敌鼠钠盐1/3包(1包=1克)吞服。服后恶心呕吐数次,此后患儿精神不振,食欲减退。入院前5天发现断续鼻衄及龈衄,皮肤不断出现紫癜,尤以腰、肘、足踝部明显,伴有 Lv Mou, male, 3 years old. June 20, 1972 to nose and mouth bleeding, skin purpura, melena 5 days admission. History of illness: 3 days before the onset of play mistakenly put the enemy on the windowsill sodium salt 1/3 package (1 package = 1 g) swallow. After serving vomiting nausea several times, then children with sluggishness, loss of appetite. 5 days before admission found intermittent epistaxis and gingivalis, purpura skin appears, especially in the waist, elbow, foot and ankle was obvious, with