呼吸困难.ppt

Dyspnea 呼吸困难 PRESENTATION OF CASE A 56-year-old man was admitted to the hospital because of rapidly progressive dyspnea and pulmonary abnormalities . Figure 1. Posteroanterior Radiographs of the Chest The lung volumes are reduced , and there is hazy opacification that predominantly affects the middle and lower lung zones (Panel A). A magnified view of the right upper lobe (Panel B) shows hazy opacification and reticulonodular interstitial opacities. Figure 2. High-Resolution CT Scan of the Thorax . ground-glass opacifications ,periphery b changes in subpleural locations Figure 3. Biopsy Specimen of the Lung. ? ? ? 请思考该患者的主要症状是呼吸困难该患者的主要症状是呼吸困难 An unpleasant sensation of difficulty in breathing Dyspnea is a symptom, not a sign 呼吸困难定义患者自觉空气不足、呼吸费力?呼吸频率、深度、节率改变?张口呼吸?端坐呼吸?紫绀?辅助呼吸肌参加活动病因