Tb test question ?

Question

How do they do it? What does 1st and 2nd step mean. Do I have to have two tests? How far apart are the tests?

Answer 1

The tuberculosis test consists of 2 parts only if necessary. They inject as small amount of tuberculin toxin directly under the skin. If you have a positive reaction to the skin test (red circle or raised rash) then they have to go to step 2. The second part is an x-ray to make sure that you do not have a latent tuberculosis infection. They only do the xray if you have a positive skin test.

Answer 2

On a TB test you only have one test done unless it comes back post. then they can do an chest x ray. What they will do is take a shot place the needle right under the skin on the inside of the arm I am not going to say it won't hurt some do and some don't. It does not take very long for them to do the test. It will form a bump or a knot where they went under your skin that means it might be post. then they will rest test you. Don't rub it where they do it and don't cover it up. They can read it i think within 24-72 hours I can't remember. They will tell you if you have to have one or more test. If you are worried ask them where you are getting the test done they can tell you more. Good Luck

Answer 3

i suppose you are talking about the screening test, not the diagnostic test.
There are a few screening tests that can be done.
1. Tuberculin test (Mantoux test) - a small quantified amount of tuberculin (a bacterial cell wall component of TB) is injected just inside the epidermal layer (NOT under) as a small bleb and read a couple of days later for reaction. if it is negative, a second one may be done to see if there is dormancy in the memory. if you had BCG in the past, tuberculin test could come back positive
2. XR of chest - not very good - in fact pick up rate is very very low.
3. recently there is a blood test called the Quantiferon Gold which measures the activity of the white cells responding specifically to the components of TB. this is essentially a fancy tuberculin test, but you only visit the doctor once (rather than twice) and the test is still useful if you had BCG (no cross reaction with BCG, though still pick up past infection of other non TB mycobacterium such as Bovine TB - i.e. cow "TB" - not the same bug)
however the tests involving tuberculin both requires the patient to have a competent immune system (as they are essentially measuring immune response to the TB components) the test is hard to interpret if the patient is immunosuppressed.

hope this helps. talk to your doctor.

Answer 4

Very very simple!! They use a tiny tuberculin syringe with a small amount of TB med and inject it in your forearm very superficially making a small bubble that almost resembles a blister. Once this is done the second step is coming back to the doctor 2 days later. If you have it done on a Monday you go back on Wednesday. They are looking at the site of injection. If it comes back with a reaction it is considered positive. A reaction will look like a welt a red round rash and sometimes be itchy but do NOT touch the site when you get the injection. Leave it alone.

When you get it checked if it does come back with a reaction and say it's positive they will do a chest x-ray to see if it is active or just were exposed at one time of your life. If the chest x-ray is clear then that's it. If there is no reaction on the injection site and doesn't look like you even had one you don't even have to have the chest x-ray. But just in case that happened I wanted to let you know it's common to have that done.

Answer 5

Yes it means that u will have to get 2 shots. I think they are 2 weeks apart. It is just a small needle inserted just under the skin, and the medicine is injected. It will make a little bubble where it is injected, and that will go down on it's own. They r looking to see if there is a reaction in that area. A positive test would have a large red spot where they injected the medicine, and it might itch.

Answer 6

commonplace results of Purified protein by-product dermis try: A detrimental reaction (no induration) or a point of not undemanding swelling that falls under the cutoff for each possibility team would propose that a individual has not been contaminated with the micro organism that reason TB. There are diverse cutoffs for toddlers, those with HIV, and different possibility communities. regrettably, that may not a perfect try, and as much as twenty% of human beings contaminated with tuberculosis won't have a reaction on the PPD dermis try. besides, particular circumstances that impression the immune gadget (maximum cancers, present day chemotherapy, previous due-point AIDS) would reason a pretend-detrimental try effect. the main debatable component of BCG is the variable efficacy present day in diverse medical trials that seems to count on geography. medical trials carried out interior the united kingdom have consistently shown a keeping results of 60 to 80%, yet trials carried out someplace else have shown no keeping result, and efficacy seems to fall the closer one gets to the equator Please see the internet internet site for extra information on Mantoux try.

Answer 7

you only have 1 test, and it is really easy and painless. They inject it right under your skin on one of your forearms, piece of cake, i have one every year