Question

A 64-year-old former smoker (quit 20 years ago) with 30 pack-years previously underwent LDCT screening for lung cancer. According to USPSTF, when should LDCT be discontinued?

Accepted Answer

Only when cumulative radiation dose is high

Answer

After 5 years of negative scans

Answer

At age 70 regardless of risk

Answer

Continue annually indefinitely

Answer

When it has been >=15 years since quitting or age >80 or limited life expectancy

Practice question

A 64-year-old former smoker (quit 20 years ago) with 30 pack-years previously underwent LDCT screening for lung cancer. According to USPSTF, when should LDCT be discontinued?