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.
Your positive skin test may mean: 1  that you are infected with the TB germ, (this is called latent TB infection), or. 2  that you have been immunised for TB in the past with a BCG vaccination (which leaves a scar on your arm), or.atent infection means you have inactive or sleeping TB germs in your body; you cannot pass these germs on to anyone else and you are not sick with TB. People with latent TB infection have a 10% risk of developing TB disease during their life.