Results: The median times for sham CT consent in phase 1 were 2 and 4 minutes. Of the 729 patients enrolled in phase 2, 647 (89%) underwent CT evaluation. Their median age was 52 years (IQR 32, 74); 54% were male; 95% had a blunt mechanism of trauma; 55% were admitted to the hospital; and 5% had a surgical procedure performed after CT. The median and mean TACCT were 11 min (IQR 7, 19) and 17 min (SD 20) respectively. The median GCS was 15 (IQR 14, 15). Of the 647 patients enrolled, 439 patients (67.9%; 95% confidence interval [CI] 64.2 -71.3%) met feasible consent criteria. Of the 208 patients who did not meet feasible consent criteria, 190 (91.4%; 95% CI 86.7 -94.5%) had a GCS less than 15 and 18 (8.7%; 95% CI 5.5 -13.3%) had a short TACCT.Conclusions: In this study of acute, adult trauma patients, consent for CT was feasible in over two-thirds of patients. When CT was not feasible, the primary reason was a GCS < 15. When considering efforts to increase shared decisionmaking between medical providers and acute trauma patients, informed consent for CT scans is a feasible option. Future studies may determine if providing such informed consent correlates with improvement in patient satisfaction and more efficient CT utilization.Acknowledgements: This work was made possible by R25MD006832 from the National Institute on Minority Health and Health Disparities. The viewpoints and opinions expressed here in no way reflect those held by this institution.