RT Book, Section A1 Ritter, Kathryn A1 Fitch, Robert Warne A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181043710 T1 Contrast Extravasation T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181043710 RD 2024/04/16 AB Extravasation of IV contrast material into surrounding soft tissues is reported in only 0.5% of CT scans. When this occurs, patients may develop erythema, ecchymosis, blistering, and swelling of the affected site. If the volume of extravasated contrast material is greater than 50 mL, patients are at increased risk for serious complications including skin ulceration or necrosis. Compartment syndrome is the most feared sequela; it is important to monitor these patients for pain out of proportion on exam, paresthesias, poikilothermia, pallor, paralysis, or pulselessness.