why does an induration occur w/ TB mantoux?

Nursing Students Student Assist

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Specializes in Post acute.

I know that once the mycobacterium tuberculosis enters the body, the body encases it with collagen. Why are the parameters of a positive tubercle an induration of 10mm ??

can someone explain the patho to me?

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Specializes in Complex pedi to LTC/SA & now a manager.

Well as a student what has your research into the pathophysiology of TB and Mantoux testing shown you?

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Specializes in Post acute.

that the body encapsulates it in collagen... But under what parameters make it positive (10mm vs 2mm?), and why?

I was hoping for more information.

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.
that the body encapsulates it in collagen... But under what parameters make it positive (10mm vs 2mm?), and why?

I was hoping for more information.

Research is going to be an important part of your every day life as a nurse. Beachy has given you plenty of resources for you to find the answer you seek. It is important for you to know how to extrapolate information from resources given.

Tell us what YOU think first and we will jump right in.

The CDC is your premier resource on this subject.

CDC | TB | Fact Sheets - Tuberculin Skin Testing for TB

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Specializes in Emergency.

I was hoping for more information.

We were hoping for you to do at least some research. We don't always get what we want, though.

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Specializes in Complex pedi to LTC/SA & now a manager.
that the body encapsulates it in collagen... But under what parameters make it positive (10mm vs 2mm?), and why?

I was hoping for more information.

Clearly you didn't bother to look at the resources as asmscience article specifically addressed your pathophysiology query and why the size of induration is not random.

You can lead a student to research but....

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