As thrombolytics need to be started as soon as possible, it can be difficult to determine quickly if a patient meets criteria for thrombolytic therapy.

• 由于溶栓药应尽可能提早使用，因此要鉴别一个患者是否符合溶栓治疗的使用条件是相当困难，从以下的这些患者发现有五个主要的不适用溶栓药的因素。