Whole Blood Cadmium (Cd)
Toxic heavy metal with a biological half-life of 20 to 30 years, concentrating primarily in renal proximal tubular cells bound to metallothionein.
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.
<1.0 ug/L (non-smoker)
General reference distribution across unselected commercial populations.
<0.5 ug/L
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Accumulates within lysosomes, displaces zinc and iron from metalloenzymes, and induces mitochondrial membrane permeability transition.
Differential Diagnosis
Elevated Levels (Cd High)
- •Active tobacco smoking (each cigarette transfers cadmium directly to pulmonary capillaries)
- •Occupational smelting / electroplating
- •Dietary rice grown in contaminated soil
Low Levels (Cd Low)
- •Non-smoking, low-exposure status (<0.5 ug/L)
- •Preserved renal tubular epithelium
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 Cd
- Targeted organ system imaging or functional dynamic testing related to renal proximal tubular accumulation
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Whole Blood Cadmium - The New England Journal of Medicine (2021). PMID: 34090124
- [2]Cd 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 Whole Blood Cadmium (Cd) into overall healthspan optimization.