Division of Allergy/Pulmonary/Critical Care, Vanderbilt University Medical Center, Vanderbilt University, 1161 21st Avenue South, Nashville, TN 37232, USA.
Clin Chest Med. 2013 Mar;34(1):21-6. doi: 10.1016/j.ccm.2012.11.006. Epub 2013 Jan 17.
The Light criteria serve as a good starting point in the separation of transudates from exudates. The Light criteria misclassify about 25% of transudates as exudates, and most of these patients are on diuretics. If a patient is thought likely to have a disease that produces a transudative pleural effusion but the Light criteria suggest an exudate by only a small margin, the serum-pleural fluid protein gradient should be examined.
Light 标准可作为区分漏出液和渗出液的良好起点。Light 标准大约将 25%的漏出液误诊为渗出液，而且这些患者大多正在使用利尿剂。如果认为患者可能患有导致漏出性胸腔积液的疾病，但 Light 标准仅提示为渗出液且程度很轻微，那么应检查血清-胸腔液蛋白梯度。
