1394: PREARREST INVASIVE VENTILATION CHARACTERISTICS OF PEDIATRIC IN-HOSPITAL CARDIAC ARREST PATIENTS. (16th December 2021) - Shepard, Lindsay; O'Halloran, Amanda; Graham, Kathryn; Kienzle, Martha; Slovis, Julia; Topjian, Alexis; Sutton, Robert; Yehya, Nadir; Morgan, Ryan