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O2 toxicity

med gas review

QuestionAnswer
What are determining factors for O2 toxicity? PO2 & Exposure Time
What does O2 toxicity primarily affect? The lungs & CNS
What are complications/precautions associated with oxygen therapy 1. Oxygen toxicity 2. Retinopathy of prematurity 3. Absorption atelectasis 4. Oxygen induced hypoventilation
What syndrome can result from oxygen toxicity Respiratory distress syndrome
How can the risk of oxygen toxicity be reduced FIO2 < 60
What are clinical signs of oxygen toxicity 1. Cough 2. Substernal Pain 3. Lethargy, Dyspnea 4. Refractory Hypoxemia, Vomiting
Who does depression of ventilation occur in? COPD patients with chronic hypercapnia
What happens in retinopathy of prematurity? Excessive blood O2 levels cause retinal vasoconstriction & necrosis
High FiO2 in an infant can result in ROP-retinopathy of prematurity
The primary reason some patients with COPD hypoventilate when given O2 is most likely suppression of what Hypoxic Drive
Complications/precautions associated with oxygen therapy C. Retinopathy of prematurity
What are three goals of O2 Therapy 1. Correct documented or suspected acute Hypoxemia 2. Decrease symptoms associated with chronic hypoxemia 3. Decrease workload hypoxemia imposes on cardiopulmonary system
Created by: dxb.0323