Post-Landing Orthostatic Intolerance after Spaceflight: Characterization of Intravenous Fluid Resuscitation in NASA Astronauts
A retrospective review of 79 NASA astronauts reveals that post-landing orthostatic intolerance is frequently treated with highly variable, non-standardized intravenous fluid volumes lacking evidence-based guidelines, highlighting an urgent need for physiology-informed protocols for future deep-space missions.