Iodine, urine — lab reference
In the reference guideSpot urine is useful mainly for populations; individual status requires careful collection and interpretation.
THE PURSER WELLNESS LIBRARY
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What’s searchable?Spot urine is useful mainly for populations; individual status requires careful collection and interpretation.
Color and clarity are nonspecific; review medications, hydration, and sediment.
Diet, infection, medications, and specimen age affect result.
Renal threshold, SGLT2 inhibitors, pregnancy, and hyperglycemia matter.
Fasting, ketogenic diet, vomiting, and diabetes context matter.
Confirm with microscopy; exercise, menstruation, myoglobin, and hemolysis may interfere.
A1 <30; A2 30-300; A3 >300. Persistence ≥3 months matters for CKD classification.
Use laboratory and indication-specific thresholds; consider timed collection when needed.
Collection completeness must be assessed.
Specimen choice, timing, recent seafood/supplements, provoked vs unprovoked collection, and public-health thresholds matter.
Acute-phase reactant; interpret with serum/urine copper and clinical context.
Urine/plasma method, creatinine correction, collection timing, and assay matter.
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