Acutely ill older adults are at high risk of adverse health outcomes, including loss of function, loss of independence, and mortality. Screening instruments may aid the identification of older adults who are at high risk of negative health outcomes. An extensive geriatric examination, by means of the Comprehensive Geriatric Assessment (CGA), and fit-for-purpose interventions, such as drawing an inventory of the required aftercare, instructions upon discharge, and Advance Care Planning (ACP) can all contribute to improved outcomes. The implementation of screening for vulnerability in the emergency department requires a tailored approach. The current screening instruments differ in terms of target population, moment of application, outcome measures and predictive properties. The APOP screener has been developed and validated in Dutch hospitals. A screening instrument is always part of a broader repertoire, such as education, awareness, adjustment of care processes and protocols, and implementation of appropriate interventions, all aimed at improving outcomes for acutely ill older adults.