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Coombs test (DAT/IAT)

Antibodies attacking red cells.

General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.

Why it is done

Haemolytic anaemia, pregnancy (Rh negative), newborn jaundice.

Preparation

No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Antibodies present. Low or negative may mean: Not detected. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

⚠️ Reference ranges vary by lab, age and sex — always use the range printed on your own report.

Consult a doctor to interpret results — a single test does not make a diagnosis.

Where to get this near you

🏥 Care near you

Uses your location once to list the nearest facilities. Nothing is stored.

Common questions

Why is Coombs test (DAT/IAT) done?
Haemolytic anaemia, pregnancy (Rh negative), newborn jaundice.

Do I need to prepare or fast for Coombs test (DAT/IAT)?
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Antibodies present. Low or negative may mean: Not detected. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

SI text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).

Sources: SI health summary (own words); MedlinePlus Lab Tests and CDC as references

Emergency — call📞 102