answersLogoWhite

0


Best Answer

Normally for 1 year.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How long is a neg TB test result good for?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Can you still be pregnant if the test comes back neg?

It is possible (a false negative test result), but not likely.


Can anitboitics affect the result of a pregnancy test... late for period and took a test and was neg?

yes they can affect the results wait a week or two and retake the test if your still unsure get a blood test


Sore breast heartburn tiredness missed period period cramps geadaches and some spotting but neg result on test?

Take another test in a week


You took a preg test and It said neg after a few hours it was positive then took one next day it was neg could you be pregnant?

If it read negative after one or two minutes then that's your result. If you wait around a few hours and look at the same test it want be accurate because the Ph of the urine changes the longer it sits out. It should say some where in the package that the kit came in not to wait after so long to read the result. If you took a second test, like you said you did the next day and it was negative, then you are negative. When you are pregnant you release a hormone called HCG, and the test they put out now are really good at picking up this hormone if you are indeed pregnant.


Can you get a false neg pregnancy test by not leaving the test in the urine long enough in the pee in a cup method?

Yes this can happen. Its best to have a blood test performed. More accuarte.


Can a pregnancy test show neg and be pos?

Yes. A home test can give you a false neg but almost never a false pos. If you test too soon it can be neg even tho youre pregnant cuz your HCG level's not high enough yet. But if you wait til your period's a little late and test it'll usually be accurate.


When you subtract a negative from a negative does it make it positive?

There's no general rule. The result could be positive and it could also be negative. It depends on how big both numbers are. (neg 5) minus (neg 7) = pos 2 (neg 5) minus (neg 3) = neg 2


Owen Turner is Neg Dupree?

Good for him then


Could i be pregnant an still have a normal period flow i was 4 days early an had pos. urine test an neg. blood test an clear stuff out of my boobs doc said he heard heart be but neg blood an on med?

if there is a pregnancy, there may be a problem


Had unprotected sex.... preg test neg after a week late.... 3 days after period came.... after period did another test and still neg.. could I still be pregnant?

As you did two pregnancy tests and both were negativeafter a break . Then you may not be pregnant at all.


You took one preg test and it was positive with a light line now you have taken 2 more and they are neagtiveAm I pregnant?

After taking one that did not show a result @ all, then took the 2nd and it was neg. This last was a light positive line.


Preg test neg still no period after one day of spotting bright red?

What is your question?