第七章测试1.According to the definition , which of the following conditions can be diagnosed as respiratory failure?（ ）
A:PaCO2 > 40 mmHg B:PaO2 < 70mmHg C:PaCO2 > 50 mmHg D:PaO2 < 90mmHg
答案:C
2.Which of the following is the cause of hypoxic respiratory failure?（ ）
A:Decreased minute ventilation B:Inadequate alveolar ventilation C:Ventilation-perfusion mismatch D:Increase in dead space ventilation 3.Which of the following diseases are likely to cause respiratory failure？（ ）
A:Upper airway obstruction B:Sepsis C:Bronchiolitis D:Asthma 4.Which of the following meets the clinical characteristics of acute respiratory distress syndrome?（ ）
A:Chest imaging findings of new infiltrate(s) consistent with acute pulmonary parenchymal disease B:Onset within 7 days of known clinical insult C:Respiratory failure by cardiac failure or fluid overload D:Impairment in oxygenation 5.Bronchiolitis and asthma are the most common causes of acute respiratory failure in pediatric patients. （ ）
A:对 B:错
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