下列可释放血小板激活因子的细胞应除外() ["内皮细胞","淋巴细胞","嗜碱性粒细胞","单核细胞","中性粒细胞"]
女,8岁,头痛,鼻塞半年余,CT如图所示,最可能诊断为() ["鼻咽癌","鼻咽部炎症","腺样体肥大","神经纤维瘤","咽后脓肿"]
女性,49岁,诊断为风湿性心脏病,二尖瓣狭窄。拟行二尖瓣置换术。术前有快速型房颤,宜选择何种药物控制() ["A.胺碘酮","地高辛","普萘洛尔(心得安)","西美律(慢心律)","维拉帕米(异搏定)"]
低血容量休克的病人,必须输血的是()。 ["Hct低于20%","白蛋白低于2.0g/dl,有明显组织水肿","凝血因子减少","收缩压低于70mmHg","心率130次/分"]
炎症介质的主要作用是使() ["局部组织合成代谢增强","组织分解代谢增强","血管壁通透性增加","细胞酶系统障碍","组织损伤"]
胃泡鼓音区缩小或消失见于哪些情况?