I was admitted Monday, May 21, 2012 for further testing to see if I have TB. My chest x-ray came up with lesion on my right lung. I had been coughing for the past couple of months. So far I had a PPD done and that was negative, test on 3 samples of sputum and it was determine there was not enough bacteria to determine a correct outcome. So now they are wanting to do another extraction of bacteria from my lungs, called something thats starts out like bron..... Is the second procedure common?