question: sir, my baby aged about 15 ye 5 m 21 days was chronic cough with sputum and blood. She was admitted in the hospital and at the first instance, the test for cystic fibrosis, deta 508 and sweet chloride was conducted which come in nagative and normal 32. Latter on her echo of heart was taken and dignosed as pulmonary hypertension as such, she was admitted in cardio hospital, where cultural test was conducted and cholestic sulphate injunction was given and after 6 hours she passed away. NOw my son sindh yar aged about 10 years having morning cough with small sputum , sneezing,irritation, poor health, i do not want to loose him. please tell me what kind of test should be taken so that the disease can be dignosed