MEDICAL ANIMATION TRANSCRIPT: Screening for lung cancer means looking for signs of cancer in your lungs before you have symptoms. Screening can help find cancer at an early stage. This can make treating it easier because the cancer might not have spread. Screening for lung cancer is recommended once a year if you: have a “twenty pack-year” history of smoking cigarettes, meaning you have smoked about a pack a day for twenty years, or two packs a day for ten years; smoke now or have quit smoking within the past fifteen years; and are between fifty and eighty years old. You may stop yearly screening for lung cancer if you: are over eighty-one years old; haven’t smoked in fifteen or more years; or have a health problem that makes you unable or unwilling to have surgery if lung cancer is found. The only recommended screening test for lung cancer is low-dose computed tomography. This is also known as a low-dose CT scan, or LDCT. An LDCT machine emits a very low dose of x-rays that makes a se...