C-peptide, fasting — lab reference
Some search terms matchedInterpret with concurrent glucose, kidney function, and exogenous insulin use.
THE PURSER WELLNESS LIBRARY
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What’s searchable?Interpret with concurrent glucose, kidney function, and exogenous insulin use.
Formula-dependent and population-dependent. Dr. Purser to define clinic interpretation, if used.
Assay-specific; reflects approximately 2-3 weeks and is affected by protein turnover.
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.
Higher HDL is not always protective; interpret within the entire risk profile.
150-199 borderline high; 200-499 high; ≥500 severe and pancreatitis-relevant.
Risk-based goals may be lower; useful when triglycerides are elevated.
Often calculated. Less reliable when triglycerides are markedly elevated.
90-99 above desirable; 100-119 borderline high; 120-139 high; ≥140 very high. Risk goals may be lower.
Assay-specific. Interpret with HDL and ApoB.
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