The Tuberculin skin test (Mantoux) looks at skin reaction to TB protein, read after 48 to 72 hours. It is done for: screening for TB infection.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Screening for TB infection.
Return for reading after 2 to 3 days. Laboratory-specific; see the reference range on your report. High or positive may mean: TB infection likely (also after BCG). Low or negative may mean: Infection less likely. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Skin reaction to TB protein, read after 48 to 72 hours.
Skin test
TB infection likely (also after BCG).
Infection less likely.
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.
Uses your location once to list the nearest facilities. Nothing is stored.
What does the Tuberculin skin test (Mantoux) measure?
Skin reaction to TB protein, read after 48 to 72 hours.
Why is the Tuberculin skin test (Mantoux) done?
Screening for TB infection.
Do I need to fast for the Tuberculin skin test (Mantoux)?
Return for reading after 2 to 3 days.
What does a high or positive Tuberculin skin test (Mantoux) mean?
TB infection likely (also after BCG).
What does a low or negative Tuberculin skin test (Mantoux) mean?
Infection less likely.
What is the normal range for the Tuberculin skin test (Mantoux)?
Laboratory-specific; see the reference range on your report.
Why is Tuberculin skin test (Mantoux) done?
Screening for TB infection.
Do I need to prepare or fast for Tuberculin skin test (Mantoux)?
Return for reading after 2 to 3 days. Laboratory-specific; see the reference range on your report. High or positive may mean: TB infection likely (also after BCG). Low or negative may mean: Infection less likely. 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