The Canadian Task Force on Preventive Health Care recommends against screening for colorectal cancer after age 75. This recommendation is based in part on lag time to mortality benefit and a reduced life expectancy in the very elderly. To explore the extent to which screening for colorectal cancer is appropriately ordered in primary care, we performed a cross sectional study in women aged 80-84 at an academic family medicine clinic in Montreal. Appropriateness was assessed using a validated life expectancy calculator, with a 10-year life expectancy of >50% serving as the threshold for appropriateness. Among women 80-84 years of age under the care of a physician in 2016 (N=144), 95 fecal immunochemical tests were ordered from 2016-2019. Of these, 41 were screening tests, and 16/41 (39%; 95% CI 24% to 54%) were deemed to be inappropriate. This finding suggests a need to improve screening decisions for elderly women followed in primary care.