What tests should be done to confirm the newly diagnosed lung cancer?

How to diagnose lung cancer early? The following symptoms and signs are helpful for early diagnosis: 1. Long-term smokers have a sudden change in cough and blood in sputum; 2. Repeated inflammatory changes in a certain part of the lung; 3. Increased localized lung markings or localized emphysema that cannot be explained by general tracheitis; 4. auscultation with the lungs, limited wheezing and flute, snoring does not change due to cough; 5. Sudden dry cough and choking cough for more than two weeks, and the anti-inflammatory treatment is ineffective, or the nature of the original chronic cough suddenly changes; 6. Sudden bloody sputum, unbearable chest pain without obvious explanation; Lung cancer is common in men aged about 45 who smoke more than 20 cigarettes a day. In this group, if there are symptoms such as irritating dry cough and blood in sputum, they should see a doctor as soon as possible, and do chest X-ray sputum to find cancer cells, fiberoptic bronchoscopy, chest CT, percutaneous lung puncture and so on. In addition, you can also do a blood test. Sometimes if you can't find it once, you have to check it many times until you find it clearly. Take a chest X-ray every six months, and then do CT examination and sputum examination when necessary to find cancer cells. In addition, for some people with extrapulmonary symptoms and signs, such as clubbing fingers, male breast hypertrophy, sudden skin disease and other manifestations, further examination should be done to prevent missed diagnosis.

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