🧪 Lab Test Interpreter (report read-out)

When to use

For rapid read-out in clinic/ED, checking abnormal results on rounds, and interpreting health-screen reports at follow-up. Entering sex and age enables eGFR and sex-specific reference ranges; enter only what you have. Critical values are highlighted separately.

How it works

Each value is graded into five bands (critical-low / low / normal / high / critical-high) against common adult reference ranges. Derived indices: eGFR = CKD-EPI 2021 (race-free); anion gap = Na − Cl − HCO₃; corrected Ca = measured Ca + 0.02×(40 − albumin g/L); LDL (Friedewald) = TC − HDL − TG/2.2 (TG < 4.5 mmol/L); FIB-4 = age × AST / (PLT × √ALT). Liver pattern is classified as hepatocellular / cholestatic / mixed from the transaminase-vs-ALP profile.

Key points

• Beyond per-test flags, it chains derived indices automatically so nothing is missed (e.g. albumin-corrected calcium when albumin is low, or the limits of Friedewald LDL when TG is high).
• eGFR uses the 2021 race-free CKD-EPI equation and reports the CKD stage (G1–G5).
• Liver injury is split into hepatocellular / cholestatic / mixed; anemia is classified by MCV into micro-/normo-/macrocytic; thyroid is read from TSH + FT4 into primary/subclinical hypo- or hyperthyroidism.
• Critical values are highlighted for immediate handling per local protocol.
• Reference ranges vary by lab and assay — the tool's values are common defaults; always defer to your own laboratory's reference intervals.

References

• Inker LA, et al. New Creatinine- and Cystatin C-Based Equations to Estimate GFR without Race (CKD-EPI 2021). N Engl J Med 2021.
• Sterling RK, et al. Development of a simple noninvasive index to predict significant fibrosis (FIB-4). Hepatology 2006.
• Tietz Textbook of Clinical Chemistry and Molecular Diagnostics — adult reference intervals.