Lactate Dehyderogenase LDH - Pleural Fluid
Also Known As
Test Parameters Included
- Pleural Fluid Lactate Dehydrogenase (LDH) Concentration (U/L)
- Pathologist Clinical Biochemistry Remark - interpreted using Light's criteria for transudate vs exudate classification
Department
Methodology
Sample Required
Preparation
Schedule Report
24 Hours
Emergency Report
Yes
Frequently Asked Questions
Why is LDH measured in pleural fluid?
LDH helps differentiate transudative effusions (heart failure, cirrhosis) from exudative effusions (infection, malignancy, inflammation) using Light's criteria.
What is a normal LDH level in pleural fluid?
Normal pleural fluid LDH is less than two-thirds the upper limit of normal serum LDH. Levels above this suggest an exudative process.
What causes high LDH in pleural fluid?
Elevated LDH indicates cell turnover or tissue damage from conditions like pneumonia, tuberculosis, malignancy, pulmonary embolism, or autoimmune diseases.
Is fasting required for this test?
No, fasting is not required as this test is performed on pleural fluid obtained via thoracentesis, not on blood samples.
How is the sample collected?
Pleural fluid is collected by needle aspiration (thoracentesis) under ultrasound guidance and sent in a sterile container to the laboratory.
How long does it take to get results?
Results are typically available within 24 hours. Verified PDF reports can be accessed via www.drpatholab.in or WhatsApp/Email.
Test Description
Test Code
L05
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