Viоlet is а 13 yeаr оld with Cystic Fibrоsis. She wаs diagnosed at age 4 after a long series of respiratory infections, and failure to thrive. She is currently in the hospital for a “tune-up” after presenting to the outpatient clinical with a significant reduction in her baseline Pulmonary Function Tests (PFTs). Which nursing intervention is the highest priority of the admitting nurse for this patient?