Table 2. Pleural fluid chemistry and microbiology findings.

Pleural fluid chemistry and microbiology	Value
Lactate dehydrogenase, pleural	82 U/L
Protein	4.7 g/dL
Glucose, pleural	103 mg/dL
pH	8
Color	Yellow
Character	Cloudy
Red blood cell count	3,230
White blood cell count	644
Neutrophils	40%
Mononuclear cells	49%
Eosinophils	11%
Gram stain	No organism observed
Gram stain cell count	40–50 white blood cells/hpf
Pleural fluid cultures	No growth