<s>[INST] what would be the other tests necessary if I was diagnosed with minimal ptb both upper lungs of undetermined activity? Chest pa shows fibrohazed densities seen in both upper lungs, more in the left. Heart is not enlarged. Diaphragm and sulci are intact. Visualized bones and soft tissue structures are normal. [/INST] Hi. I can understand your concern. You will need to undergo sputum testing for TB.So better to consult pulmonologist and get done clinical examination of respiratory system Don't worry, you will be alright. Hope I have solved your query. Wish you good health. Thanks </s>