target88Find a Target store near you quickly with the Target Store Locator. Store hours, directions, addresses and phone numbers available for more than 1800 Target store locations acrossHypoxemia is usually defined by a SpO 2 range of 88–92%. [19] In a prospective ARDS cohort, refractory hypoxemia (defined by a PaO 2 of less than 60 mmHg with an FiO 2