Pleural effusion - laboratories in common cause

Clear ultrafiltrate of plasma that originates from the parietal pleura- pH 7.60-7.64- Protein content less than 2% (1-2 g/dL)- Fewer than 1000 WBCs per cubic millimeter- Glucose content similar to that of plasma- Lactate dehydrogenase (LDH) less than 50% of plasma2. Most common cause- Left heart failure- Pneumonia- Malignancy- Pulmonary embolism- Viral diseaseAdd: Tuberculosis, empyema3. Casea. Left heart failure - Clear/serous/light yellow- Nucleated cells 50k, neutrophilia- Glucose 1000 IU/L in empyema- pH10% ...
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Pleural effusion - laboratories in common cause Pleural effusion - laboratories in common cause1. Normal:- Clear ultrafiltrate of plasma that originates from the parietal pleura- pH 7.60-7.64- Protein content less than 2% (1-2 g/dL)- Fewer than 1000 WBCs per cubic millimeter- Glucose content similar to that of plasma- Lactate dehydrogenase (LDH) less than 50% of plasma2. Most common cause- Left heart failure- Pneumonia- Malignancy- Pulmonary embolism- Viral diseaseAdd: Tuberculosis, empyema3. Casea. Left heart failure- Clear/serous/light yellow- Nucleated cells c. Malignancy- Bloody/serosanguineous- Nucleated cells10%- LDH >1000 UI/L- Glucose