Shared decisionmaking (SDM) has been proposed as a method to promote active engagement of patients in emergency care decisions. Despite the recent attention SDM has received in the emergency medicine community, including being the topic of the 2016 Academic Emergency Medicine Consensus Conference, misconceptions remain regarding the precise meaning of the term, the process, and the conditions under which it is most likely to be valuable. With the help of a patient representative and an interaction designer, we developed a simple framework to illustrate how SDM should be approached in clinical practice. We believe SDM should be the preferred or default approach to decisionmaking, except in clinical situations where three factors interfere. These three factors are lack of: 1) clinical uncertainty or equipoise, 2) patient decisionmaking ability, and 3) time, all of which can render SDM infeasible. Clinical equipoise refers to scenarios in which there are two or more medically reasonable management options. Patient decisionmaking ability refers to a patient’s capacity and willingness to participate in his/her emergency care decisions. Time refers to the acuity of the clinical situation (which may require immediate action) and the time that the clinician has to devote to the SDM conversation. In scenarios where there is only one medically reasonable management option, informed consent is indicated, with compassionate persuasion employed as appropriate. If time or patient capacity are lacking, physician-directed decisionmaking will occur. With this framework as the foundation, we discuss the process of SDM and how it can be employed in practice. Finally, we highlight five common misconceptions regarding SDM in the ED. With an improved understanding of SDM, this approach should be used to facilitate the provision of high-quality, patient-centered emergency care.