Fluid pH
- Sample Type
- Standard
- Fasting
- No
- Unit
- pH units
Measurement of pH in body fluids (most commonly pleural fluid) is a critical diagnostic tool in biochemical analysis. In pleural effusions, a low pH (<7.2) is a strong indicator of an 'uncomplicated' vs 'complicated' parapneumonic effusion, often necessitating chest tube drainage. It helps differentiate causes such as malignancy, rheumatoid arthritis, or esophageal rupture from simpler transudative processes.
Check Your Result
Check Your Result
Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
Sample handling is a major confounding factor; exposure to room air will increase pH, while the presence of local anesthetics like lidocaine in the sample can significantly lower the pH, leading to false interpretations.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Fluid pH:
Official Sources
- Thoracic Empyema - StatPearls - NCBI Bookshelfncbi.nlm.nih.gov
Research & Guidelines
- PubMed: Fluid pH Clinical GuidelinesNCBI / PubMed
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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