当白细胞和血小板减少到什么程度时,应考虑停用化疗药物() ["白细胞4.0×109/L,血小板100×109/L","白细胞3.0×109/L,血小板100×109/L","白细胞4.0×109/L,血小板80×109/L","白细胞3.0×109/L,血小板80×109/L","白细胞3.0×109/L,血小板60×109/L"]
肥厚型梗阻性心肌病的主要病理特征是() ["二尖瓣收缩期前向运动","主动脉下部室间隔明显增厚","不均等的室间隔增厚","室壁心肌普遍增生肥厚","心肌弥漫性结缔组织增生"]
只分泌浆液的腺体是() ["下颌下腺","唇腺","舌下腺","腭腺","腮腺"]
关于药疹,下列哪项是不正确的() ["发病与患者的特异性体质有关","与给药的剂量有关","抗过敏药物治疗有效","有一定的潜伏期","与给药的途径有关"]
为改善多发性肌炎的预后,在诊断多发性肌炎的同时必须排除() ["肺部感染","恶性肿瘤","尿毒症","自身免疫性疾病","血小板减少"]
什么是逆死性神经病?