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为探索快速、高效的止血药物，对应用硝普钠与酚妥拉明治疗肺结核大咯血１０６例进行对比观察，结果显示硝普钠显效率（８３．３％）及总有效率（９４．４％）明显高于酚妥拉明（４６．２％及７６．９％），两组差异有显著性（Ｐ＜０．０１）。硝普钠起效快，大多数病例（３８例、７０．４％）在１５分钟内止血，且副作用少。
In order to explore fast and efficient hemostatic drugs, the application of sodium nitroprusside and phentolamine treatment of pulmonary tuberculosis in patients with massive hemoptysis were compared 106 cases, the results showed that sodium nitroprusside significant efficiency (83.3%) and total effective rate (94.4 %) Was significantly higher than that of phentolamine (46.2% and 76.9%), the difference between the two groups was significant (P <0.01). Sodium nitroprusside works fast, and in most cases (38 cases, 70.4%) hemostasis within 15 minutes with few side effects.