Fluid Shifts Before, During and After Prolonged Space Flight and Their Association with Intracranial Pressure and Visual Impairment (Fluid Shifts): This morning, Kelly began his Return-45 (R-45) Fluid Shifts Dilution Measurements. Upon wakeup he collected saliva, blood and urine and inserted them into the Minus Eighty Degree Celsius Laboratory Freezer for ISS (MELFI) prior to …




