📋 Common Lab Reference Ranges & Critical Values
Common adult reference ranges for CBC, chemistry, renal, liver and coagulation panels, plus common critical values. Browser-side quick reference.
Common Lab Reference Ranges & Critical Values
Panel
When to use
A bedside reminder of typical adult ranges — always defer to your own laboratory's printed range and critical-value policy.
How it works
Examples: WBC (3.5–9.5) ×10⁹/L, Na 135–145 mmol/L, INR ≈ 0.8–1.2, total bilirubin ≤ 21 µmol/L.
Key points
- Ranges vary by lab, method, population, age and sex.
- Always defer to the range printed on your own report.
- Critical-value thresholds are set by each hospital.
- Critical values require immediate reporting and action.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.