FORMULA FiO2=20 + 4(02 L/min) Trigger Problem: If A 50 year old patient with DOB is given supplemental oxygen via nasal cannula which delivers at 2L/min. How much percentage of oxygen does the patient receives?
nonproductive cough </li></ul><ul><li>reduction in vital capacity and carbon monoxide diffusing capacity </li></ul>Lung Function:
Sequlae of oxygen toxicity: <ul><li>acute, or exudative, phase </li></ul>-begins within 48 to 72 hours - associated with perivascular, interstitial, and alveolar edema with atelectasis, as well as alveolar hemorrhage -reversible.
<ul>b)subacute proliferative phase; </ul>-begins fourth to seventh day -an irreversible phase Clinically, -hypoxemia and diminished compliance progress -CXR features: alveolar-interstitial pattern in an irregular distribution, with evidence of moderate loss of volume from patchy atelectasis.