Bilirubin, direct — lab reference
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THE PURSER WELLNESS LIBRARY
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Negative acute-phase reactant; not a stand-alone nutrition marker.
Broad tissue marker; hemolysis can cause false elevation.
Exercise, muscle mass, sex, race, trauma, injections, and statins affect values.
Not pancreas-specific; interpret with lipase and clinical presentation.
Assay-specific; diagnostic thresholds for pancreatitis are separate.
Normal <5.7; prediabetes 5.7-6.4; diabetes ≥6.5. Altered RBC turnover can make A1C unreliable.
No universal reference or treatment target. Standardize fasting duration and collection time.
Formula-dependent and population-dependent. Dr. Purser to define clinic interpretation, if used.
Fasting, ketogenic diets, illness, and diabetes context materially affect interpretation.
Screening measure, not a stand-alone treatment target.
Risk-based goals may be <100, <70, or <55 depending on primary/secondary prevention risk.
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