Introduction The incidence of colorectal cancer in New Zealand is among the highest in the world. Bowel lesions are detected through colonoscopy and CT colonography. The same referral criteria are used for both tests. CT colonography is useful in significantly comorbid or elderly patients as there is lower risk for complications. However, colonoscopy is the gold standard test and should be used in those able to tolerate the procedure (1). Purpose The aim of the study was to investigate the age of patients who received CT colonography in Timaru Hospital, to determine the appropriateness of referrals. It was thought appropriate referral pathways could be used for patients aged 75 years and over. Methodology A database was created for all patients who had a CT colonography in Timaru Hospital between 1 January 2020 and 31 December 2020. Health Connect South was used to gather patient information. Data was then categorised into 3 age groups - aged under 50; aged 50 to 74; and aged 75 and over. Results 418 patients had a CT colonography in Timaru Hospital during 2020. The median age was 70 years. 31 patients (7.4%) were aged under 50 years. 234 patients (56% were aged between 50 and 74 years. 153 patients (36.6%) were aged 75 years and over. Conclusion A significant number of patients who had a CT colonography were aged under 75 years. Although comorbidities have not been factored into the audit, it is likely these patients would tolerate a colonoscopy. Colonoscopy is the gold standard test so should be used where possible. References Issa, I. A., & Noureddine, M. (2017, July). Colorectal cancer screening: an updated review of the available options. World Journal of Gastroenterology. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537177/