Dr Suraj Gopinathibirla, Dr Jasper Ho, and Dr Sabrina Yeung, PGY3 residents in internal medicine at McMaster University, discuss the context and implications of the recent College of Physicians and Surgeons of Ontario (CPSO) policy change regarding withholding resuscitative measures, outcomes of in-hospital arrest and resuscitation, and patient and physician understanding of resuscitative measures and outcomes. The webinar chaired by Dr Madeleine Verhovsek and Dr Haroon Yousuf was recorded at the Chair’s Medical Grand Rounds on October 19, 2023.