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🔬 WBC Differential Interpretation

UseUse absolute counts and the trend, with left shift, atypia and morphology, to triage a white-cell abnormality.

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SourceStandard interpretation of the WBC differential and blood film

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Scene next step
📋labsOpen scene pack →
Related scores
Score + version; reference only — not a substitute for care · no HIS write

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Methodology · worked example, guidelines & full notes
Clinical takeaway

Interpret absolute counts, not just percentages.

When to use

Use absolute counts and the trend, with left shift, atypia and morphology, to triage a white-cell abnormality.

How it works

Severe neutropenia: ANC < 0.5 ×10⁹/L; with fever = febrile neutropenia (emergency).

Key points

  • Interpret absolute counts, not just percentages.
  • Febrile neutropenia is an emergency needing empiric antibiotics.
  • Peripheral blasts → suspect acute leukaemia, urgent haematology consult.
  • Unexplained pancytopenia needs a marrow examination.

References

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

ViewEosinophils

→InterpretationEosinophilia

  • Common：Allergy/asthma, parasites, drug reaction (DRESS)
  • Other：Hypereosinophilic syndrome, malignancy, vasculitis (EGPA), adrenal insufficiency
ViewNeutrophils

→InterpretationNeutrophils

  • Increased：Bacterial infection, inflammation, stress/steroids, smoking, myeloproliferative; left shift (bands/immature), toxic granulation/Döhle bodies suggest infection
  • Decreased：Viral, drugs, chemotherapy, severe infection (consumption), autoimmune, megaloblastic anaemia
  • ⚠ Severe neutropenia：ANC < 0.5 ×10⁹/L high infection risk; with fever = febrile neutropenia (emergency, empiric antibiotics)
Verification & sources · governance
FAQ

Frequently asked questions

What are the limits and cautions when using WBC Differential Interpretation?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Does WBC Differential Interpretation upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is WBC Differential Interpretation calculated in practice? Can you show a worked example?
Inputs: View Eosinophils → Result: Interpretation Eosinophilia（Common: Allergy/asthma, parasites, drug reaction (DRESS), Other: Hypereosinophilic syndrome, malignancy, vasculitis (EGPA), adrenal insufficiency） Inputs: View Neutrophils → Result: Interpretation Neutrophils（Increased: Bacterial infection, inflammation, stress/steroids, smoking, myeloproliferative; left shift (bands/immature), toxic granulation/Döhle bodies suggest infection, Decreased: Viral, drugs, chemotherapy, severe infection (consumption), autoimmune, megaloblastic anaemia, ⚠ Severe neutropenia: ANC < 0.5 ×10⁹/L high infection risk; with fever = febrile neutropenia (emergency, empiric antibiotics)）
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