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1350500 tn?1277518068

Mantoux Test

What is a 2-step Mantoux test?
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Avatar universal
MEDICAL PROFESSIONAL
Hi,
How are you? The Tuberculin Test  or Mantoux Test is used to detect latent infection in a person who may have been exposed to a person diagnosed with tuberculosis. It is indicated for persons from high TB risk groups, migrants from countries where tuberculosis is common, occupationally at risk persons such as  health care professionals. Take care and regards.
Helpful - 0
351246 tn?1379682132
MEDICAL PROFESSIONAL
Hi
Welcome to the MedHelp forum!
Some people have a negative tuberculin test and yet are infected. To avoid this confusion a 2 step test is done. The inoculum is give subdermally and the patient called after 48-72 hours. If the reaction is positive, the person is considered infected. If the reaction is negative, a second test is given 1-3 weeks later. Again the reading is taken 48-72 hours later. If second test is positive, the person is considered infected previously (no current infection). If it is negative, the person is not infective.
Please let me know if there is any thing else and do keep me posted. Take care!
Helpful - 0
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