Oxygen Toxicity occurs when excessive oxygen inhalation is done as in prolonged ventilation with hundred percent (100%) oxygen. When the inspired oxygen saturation or FiO2 of a patient on oxygen therapy is kept for long time Toxicity of oxygen is bound can take place. FiO2 of 100 % should not be kept for more than 12 hours. Similarly within 24 hours of oxygen therapy with FiO2 of 90%, it should be lowered to 80%. Systemic Effects of Oxygen Toxicity Pulmonary Toxicity Prolonged high concentrations can cause pulmonary toxicity. 100% oxygen is usually considered safe for up to 8 to 12 hours … Continue reading Oxygen Toxicity