Pleural Effusion Tables and Figures
Characteristics of the Three Stages of Parapneumonic Pleural Effusions
|Exudative Stage||Fibrinolytic Stage||Organizing Stage (Empyema)|
|Appearance||Nonpurulent, not turbid||Nonpurulent, not turbid||Purulent, turbid|
|Gram stain and culture results||Negative||Transitional||Positive (before antibiotic treatment)|
|Glucose||>100 mg/dL||<50 mg/dL||<50 mg/dL|
|Protein||<3 g/dL||>3 g/dL||>3 g/dL|
PMNs, polymorphonuclear neutrophils; WBCs, white blood cells.
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