<prompt> Answer this question truthfullyWhat is the process for screening Adenocarcinoma of the lung?  <response>: <reason> GuidelinesAccording to the U.S. Preventive Services Task Force USPSTF, screening for lung cancer by low-dose computed tomography LDCT is recommended every year among smokers and former smokers who are between 55 to 80 years old and who have smoked 30 pack-years or more and either continue to smoke or have quit within the past 15 years grade B recommendation. According to the American College of Chest Physicians CHEST in 2013, screening for lung cancer by low-dose CT LDCT is recommended every year among smokers and former smokers who are age 55 to 74 and who have smoked for 30 pack-years or more and either continue to smoke or have quit within the past 15 years. Strategies Low-dose helical computed tomography:Advantages: There is evidence that screening 55 to 74 year old smokers of 30 or more pack-years or former smokers, who have quit within the last 15 years, reduces lung cancer mortality by 20 and all-cause mortality by 6.7.Diasdvantages: At least 98 of all positive low-dose helical computed tomography screening exams do not result in a lung cancer diagnosis. False-positive exams may result in unnecessary invasive diagnostic procedures.Chest x-ray andor sputum cytology:Advantages: Screening with chest x-ray andor sputum cytology has no role in reducing mortality from lung cancer in the general population.Disadvantages: False positive exams At least 95 of all positive chest x-ray screening exams do not result in a lung cancer diagnosis. False-positive exams result in unnecessary invasive diagnostic procedures. 