Transitions for older persons from long-term care (LTC) to the emergency department (ED) and back, can result in adverse events. Effective communication among care settings is required to ensure continuity of care. We implemented a standardized form for improving consistency of documentation during LTC to ED transitions of residents 65 years of age or older, via emergency medical services (EMS), and back. Data on form use and form completion were collected through chart review. Practitioners’ perspectives were collected using surveys. The form was used in 90/244 (37%) LTC to ED transitions, with large variation in data element completion. EMS and ED reported improved identification of resident information. LTC personnel preferred usual practice to the new form and twice reported prioritizing form completion before calling 911. To minimize risk of harmful unintended consequences, communication forms should be implemented as part of broader quality improvement programs, rather than as stand-alone interventions.