Fluid Albumin
- Sample Type
- Standard
- Fasting
- No
- Unit
- g/dL
Fluid Albumin measurement is essential for calculating the Serum-Ascites Albumin Gradient (SAAG). This calculation (Serum Albumin minus Fluid Albumin) is the gold standard for determining if fluid accumulation (ascites or pleural effusion) is due to portal hypertension (transudate) or other causes like malignancy or infection (exudate).
Why Context Matters
Fluid albumin must be measured simultaneously with serum albumin for accurate gradient calculation. Recent IV fluid administration or diuretics can skew results.
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 Albumin:
Official Sources
- Albumin Blood Test: MedlinePlus Medical TestMedlinePlus
Research & Guidelines
- PubMed: Fluid Albumin 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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