Mantoux Test
- Mantoux test is done to determine the exposure to mycobacterium tuberculosis
- Positive reaction means there is an exposure to the TB bacilli
- Positive test: induration of 10 mm or more for foreign-born patient and children under 4 years old, and induration of 5 mm or more if the patient is HIV (+), with healed TB and if patient has had contact with a patient with active TB
- BCG vaccine may cause false positive reaction
- Assess the patient for previous history of TB and report it to the physician
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