361 Utilization of resources for cellulitis in hospitalized patients: Predictors of cutaneous abscess diagnosed on ultrasound

Cellulitis and cutaneous abscess are the most common skin soft tissue infections (SSTI), accounting for 4 million emergency department (ED) visits 1.5 incision drainage (I&D) procedures. Ultrasound (US) may differentiate cellulitis from more accurately than clinical evaluation reduces inappropriate I&D procedures, unnecessary antibiotics, failure to resolve post-drainage. However, there currently no standardized guidelines imaging patients. This study assesses use of in patients diagnosed with association risk factors predict likelihood on US. A retrospective chart review adult inpatients treated 2013 through 2018 was conducted. Of 788 who met inclusion criteria, 300 (38.1%) obtained an ultrasound cellulitis, which 34(11.3%) received a diagnosis abscess. Infection over permanent hardware(8.8%, p=0.018, OR 10.5), infection groin buttocks(17.6%, p=0.008, 6.86), active intravenous drug (IVDU)(44.1%, p=0.003, 2.44) were identified as positive predictors ultrasound. history heart disease(5.9%, p=0.014, 0.26), tachycardia at presentation(41.2%, p=0.029, 0.32) hemoglobin less 11.5 g/dl(p=0.003, negative is single academic medical center, limit its generalizability national level. These findings guide decision obtain preferentially overlying hardware, buttocks, IVDU cases that lack specific features concerning