Non-Invasive Ventilation (BiPAP) Algorithm - Indications and Contraindications Indications for NIV: • COPD - pH <7.35, pCO2 >6.5, RR > 23 - If persisting after bronchodilators and controlled oxygen therapy • Neuromuscular disease - Respiratory illness with RR if usual VC < 1 even if pCO2 < 6.5 or pH <7.35 and pCO2 >6.5 • Obesity - pH <7.35, pCO2 >6.5 and RR or daytime pCO2 > 6.0 and somnolent Contraindications for NIV: • Absolute: Severe facial deformity, Facial burns, Fixed upper airway obstruction • Relative: pH <7.15 (pH <7.25 and additional adverse feature), GCS, Confusion/agitation, Cognitive impairment (warrants enhanced observation) #NIV #Noninvasive #Ventilation #BiPAP #Algorithm #criticalcare #management #indications #contraindications