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Unformatted text preview: 2 is normal to slightly reduced (65-75 mm Hg) but SaO 2 is normal at rest, and PaCO 2 is normal to slightly reduced (35-40 mm Hg). In bronchitis predominat disease, hemoglobin is usually elevated (15-18 g/dL), PaO 2 is reduced (45-60 mm Hg), and PaCO 2 is slightly to markedly elevated (50-60 mm Hg). Sputum examination may reveal Streptococcus pneumoniae, H. influenza, or Moraxella ca-tarrhalis. ECG may reveal sinus tachycardia, chronic pulmonary hypertension in advanced dis-ease, supraventricular arrhythmia (multifocal atrial tachycardia, atrial flutter, and atrial fibrilla-tion) and ventricular irritability. Young patients with emphysema test positive for alpha 1-antiprotease....
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- Spring '09