RESPIRATORY
PULMONOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Heart failure
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lupus erythematosus SLE.
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Cirrhosis of the liver
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Renal failure
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Detailed explanation-1: -Pleural fluid lactate dehydrogenase LDH is a marker of inflammation or cellular injury, so is a sensitive, but non-specific pathological marker. LDH levels of greater than three times the upper limit of normal (often >1, 000 U/L) are often indicative of pleural infection, in the appropriate clinical scenario.
Detailed explanation-2: -The median ADA value of pleural fluid was 36.50U/l (24.50) in TBP group and 15U/l (21) in the PPE group. The ADA value was statistically significantly higher in the TBP group (P<0.001). The median values of pleural fluid LDH/ADA ratio in TBP and PPE groups were 16.10 (12.53) and 32.90 (34.45), respectively.
Detailed explanation-3: -Normal pleural fluid Protein: < 2% (1-2 g/dL) White blood cells (WBC): < 1000/mm³ Glucose: similar to that of plasma. LDH: <50% plasma concentration.
Detailed explanation-4: -Pleural fluid/serum protein ratio. Pleural fluid LDH/upper limit of normal serum LDH (240 IU/L in our institution).