1 Charge costs to cost objects. 2  Use an activity driver to allocate the contents of each primary cost pool to cost objects. 3  There will be a separate activity driver for each cost pool.
1 People who have a positive TB skin test with a normal chest X-ray are NOT contagious, but may need medicine to prevent them from ever getting active TB. 2  Children under the age of 12 with active TB are rarely contagious, and do not need to be kept out of school.ow often does a TB test have to be repeated? If you have a negative skin test, you need a repeat test at least every four years. If you have a documented positive skin test, you must have an initial chest X-ray. After that, you still need to be screened every four years.
A positive result does not mean that you have active TB disease right now -- the TB in your body could be either active or inactive. Active TB is bad for your health and contagious to other people, while inactive TB is not. And so, after a positive TB test, you will need further testing to determine whether you have active or inactive TB infection. A negative test result means that your system does not recognize TB, most likely because you have never been exposed to TB. After a negative result, further testing is usually not needed. AITC offers 2 types of tests for TB.