Serum Perfluoroalkyl Substances (PFAS / PFOA / PFOS)
Extremely stable synthetic organofluorine surfactants with carbon-fluorine bonds that resist all metabolic and environmental degradation.
Standard vs. Optimal Reference Rangesug/L
Standard reference intervals represent the statistical 95% distribution of unselected commercial populations. Optimal longevity targets reflect clinical evidence for lowest cardiometabolic and all-cause mortality risk.
Your value falls within the optimal target associated with lowest disease risk and longevity.
<2.0 ug/L (PFOA), <5.0 ug/L (PFOS)
General reference distribution across unselected commercial populations.
<0.8 ug/L
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Binds serum albumin and fatty acid binding proteins, activating PPAR-alpha, disrupting lipid metabolism, and suppressing immune responses.
Differential Diagnosis
Elevated Levels (PFAS / PFOA / PFOS High)
- •Drinking contaminated municipal water supplies
- •Stain-resistant carpet/furniture treatments
- •Non-stick fluoropolymer cookware degradation
Low Levels (PFAS / PFOA / PFOS Low)
- •Use of reverse osmosis water filtration
- •Avoidance of fluorinated surfactants and coatings
Technical Reference & Deep Dive
Biochemistry & Enzymatic Pathways
Longevity Risk Architecture & Epidemiology
Pre-Analytical Caveats & Diagnostic Workup
Pre-Analytical Considerations:
Specimen collection should follow standardized phlebotomy protocols. Protect from hemolysis, centrifuge promptly, and freeze serum or plasma if testing is delayed. Patient should be in a resting, fasting state where indicated.
Reflexive Testing Protocol:
- Confirmatory testing and secondary biomarker quantification for PFAS / PFOA / PFOS
- Targeted organ system imaging or functional dynamic testing related to persistent fluorinated 'forever chemicals'
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Serum Perfluoroalkyl Substances - The New England Journal of Medicine (2021). PMID: 34090124
- [2]PFAS / PFOA / PFOS Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35322901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Serum Perfluoroalkyl Substances (PFAS / PFOA / PFOS) into overall healthspan optimization.