Description
Why It’s Done:
The Mantoux test is performed to:
1. Screen for Latent TB Infection:
o Detect if a person has been exposed to TB bacteria even if they do not have active disease.
2. Evaluate Risk in High-Risk Groups:
o People with close contact to TB patients, healthcare workers, immunocompromised individuals, or before starting immunosuppressive therapy.
3. Support Diagnosis of Active TB:
o As part of the evaluation in patients suspected of having active tuberculosis.
4. Pre-employment or Pre-admission Screening:
o In some workplaces or healthcare settings.
Preparation:
• Fasting:
o Not required. No special dietary restrictions before the test.
• Before the Test:
o Avoid applying creams or lotions on the forearm on the day of the test.
• Medications:
o Inform the healthcare provider if you are on immunosuppressive drugs or have had a recent live vaccination, as these can affect the results.
• After the Injection:
o Avoid scratching or rubbing the test area.
o Return to the healthcare provider after 48-72 hours for the test reading.
