Accepted
at 10:14 p.m. Apr, 01, 2024
by
Ahmed7
Author:
shmuelsash
Rationale for change
pt in QID has exudative pleural effusion which is helpful in figuring out the answer
No changes in fields
Text
Exudative pleural effusions must meet one of the Light criteria, which are:
Pleural protein / serum protein > {{c1::0.5}}
Pleural LDH / serum LDH > {{c1::0.6}} or
Pleural LDH >{{c1::2/3}} upper limit of normal serum LDH
Extra
"Exudative has extra stuff" - LDH, protein - due to increased microvascular permeability and cell destruction
| Light's Criteria | ||
| Transudative pleural effusion | Exudative pleural effusion | |
|---|---|---|
| Protein (pleural / serum) | ≤ 0.5 | > 0.5 |
| LDH (pleural / serum) | ≤ 0.6 | > 0.6 |
| Common causes | - Cirrhosis (low albumin) - Nephrotic syndrome (low albumin) - Congestive heart failure | - Infection (TB, fungal, empyema, parapneumonic) - Malignancy - Pulmonary embolism |
Photo Credit: James Heilman, MD, CC BY 3.0, via Wikimedia Commons, modified by cropping
Lecture Notes
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Missed Questions
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Pathoma
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Boards and Beyond
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First Aid
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Sketchy
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Sketchy Extra
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Picmonic
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Pixorize
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Physeo
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Bootcamp
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