dr Ankit Parakh
Pediatric Pulmonologist
BLK Super Speciality Hospital
About Author

  • 2TU RT23 tuberculin should be used. If 2TU is not available you may use 5TU or 1TU
  • A positive Tuberculin skin test is defined as 10 mm or more induration after 48-72 hrs. Usually different technicians are giving Tuberculin Test at the same center. This practice is to be discouraged. It is preferable if one person is designated for giving Tuberculin injection. Similarly one person should be designated to read the Tuberculin Test.

  • If a patient comes after 72 hrs(upto 7 days) and the reaction is found to be 10 mm or more, then it can be taken as a positive reaction. But if the reaction is found to be less than 10 mm, then it can be repeated on the other forearm.

Posted On: 15/10/2018

Did you find this post helpful?
Yes (109)
No (17)
109 People found this post helpful.

Read more related information, Click Here

If you have a question on some other topic, Click Here

top hospitals in india
To visit our website please click here
BLK Super Speciality Hospital
Pusa Road, New Delhi-110005
Disclaimer: Although every effort is made to give correct knowledge but legality of every answer can not be guaranteed. All answers are based on professional knowledge of Specialists.