RESULTS: Among 141 patients with a D-dimer for VTE assessment, 9 (6.4%) had a documented Wells score, 10 (7.1%) had sufficient data to calculate a score, and 122 (86.5%) had neither a recorded score nor sufficient data. All 9 patients with a documented score had a low/moderate risk score, and the D-dimer was positive in 5 (55.6%) and negative in 4 (44.4%). All 10 patients with a calculated score had a low/moderate risk score, among whom 3 (30%) had a positive D-dimer and 7 (70%) had a negative D-dimer. Among the patients with a recorded or calculated score, diagnostic imaging was performed in none of the patients with a negative D-dimer and in 5 (62.5%) patients with a positive D-dimer. Among the group of patients without a recorded or calculated score, 49 (40.2%) had a positive D-dimer among whom 30 (61.2%) had imaging and 73 (59.8%) had a negative D-dimer among whom 6 (8.2%) had diagnostic imaging.