下列哪项最有助于鉴别急性呼吸窘迫综合征与心源性肺水肿() ["呼吸困难与体位的关系","啰音部位","缺氧程度","肺动脉楔压","有无心脏病史"]
与急性特发性血小板减少性紫癜发病最相关的原因是() ["病毒感染","酗酒","阿司匹林","安痛定","SLE"]
急性呼吸窘迫综合征(ARDS)常发生于原发病后() ["48h内","48h后","3d以后","5d以后","7d以后"]
血气分析对呼吸衰竭的诊断标准,下列哪项不正确() ["海平面","吸入纯氧时","吸入空气时","PaO2<60mmHg","伴或不伴有PaCO2>50mmHg"]
应用糖皮质激素治疗特发性血小板减少性紫癜,正确的是() ["仅适用于慢性期","主要作用是抑制抗原、抗体生成","能使血小板数迅速上升","近期有效率高","血小板正常后应立即停药"]
临床情景:患者,男性,38岁。血常规检查显示血小板减少,需行骨髓检查。要求:请为患者行骨髓穿刺术并涂片。