Dr. Khan’s research is focused on the nexus of acute respiratory failure, delirium, and cognitive and physical function outcomes in patients surviving the ICU. Dr. Khan’s current research activities are focused on three main areas. Delirium incidence, duration, and severity in ICU patients, delirium risk factors, and the effects of delirium on cognitive and physical outcomes. This also includes evaluation of novel non-pharmacological interventions for ICU delirium and implementation of bundled protocols (e.g., ABCDEF) for ICU delirium management. Cognitive, physical, psychiatric, and quality of life outcomes in survivors of critical illness, especially those admitted to the ICU with COVID-19. Enhancing our understanding of aging, delirium, and post-ICU cognitive impairment through fluid biomarkers.