Lung Cancer Penta test is normal this situation can only indicate that the chance of lung cancer is not high, but the lung cancer penta test can not completely exclude the possibility of lung cancer. Lung Cancer Pentathlon refers to Carcinoembryonic Antigen, Squamous Carcinoma Specific Antigen, Glyco Antigen 125, Cytokeratin 19 Fragment, and Neuron-Specific Enolase test. The Lung Cancer Pentathlon is only a means of measuring the level of specific compounds in the blood to indirectly reflect the state of the body, so it is not absolutely accurate. Lung cancer is the most common primary malignant tumor of the lungs, mainly manifested by cough, sputum, hemoptysis and emaciation. Lung cancer cannot be cured by itself and should be treated actively to prevent further deterioration. Lung cancer patients should usually consume foods that are easy to digest and absorb and rich in protein to improve the body’s anti-cancer ability. Patients can not only judge whether there is cancer by the five tests of lung cancer, but also need to do other tests (such as chest CT, etc.). If lung cancer disease occurs, it is suggested that patients should seek medical treatment in time and actively cooperate with doctors for treatment.