Question: What are the most appropriate interventions to ensure oxygen saturation remains above 92% throughout the shift? Want Online Help? Select all that apply. Intervention (s) 0 of 4 Administer chlorhexidine mouthwash hourly Encourage patient to increase fluid intake Ensure supplemental oxygen is humidified Educate patient on medication indications and side effects Flush the tracheostomy tube with povidone-iodine every shift Instill at least 30 mL of normal colina into tha trachanatamutubo