1229: VASOPRESSOR ADMINISTRATION THROUGH A MIDLINE: A PROSPECTIVE STUDY. (16th December 2021) - Knittel-Hliddal, Sonja; Flash, Mejhorn; Cannon, Kristin; Guzman, Christian Alexander; Weaver, Melissa K.; Ali, Arooj; Barnett, A. Kacee; Al-Said, Mohammed; Asad, Rahimullah