Under current screening guidelines, almost two-thirds of Americans with lung cancer would not have qualified for the CT chest scans that could have spotted tumors early and extended their lives, new research shows.

The finding hits home for 38-year-old Carla Tapia, a mother of three from Beltsville, Maryland. She smoked a bit in her youth but had kicked the habit by 18.

Nevertheless, Tapia first developed respiratory symptoms in 2018, and was diagnosed with inoperable stage 4 lung cancer in 2020.

After numerous chemotherapies failed, Tapia received a life-saving double-lung transplant at Northwestern Medicine in Chicago in 2024. She's now attending college back at home in Maryland.

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