For patients with low to moderate probability , the inestigators adise a rapid elisa test for d - dimer . if the elisa is negatie , further testing is probably not required 对于患肺动脉栓塞可能性不是很高的病人,研究者们建议采用一种快速酶标记免疫吸附测定法对d -二聚体进行检测。如果结果是阴性的,那么进一步的诊断或许是不必要的。