test2 - BME 403 Respiration Section Exam Fall 2006 Closed...

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BME 403 Respiration Section Exam Fall 2006 Closed Book 1.(30) Mart True (T) or False (F)(2point each) ( )1.1 The gas fraction of oxygen varies as a function of barometric pressure. ( )1.2 The vapor pressure of water in the lungs varies as a function of barometric pressure. ( )1.3 Shallow water blackout as discussed in class occurs during ascent because of the decreased partial pressure of carbon dioxide as barometric pressure decreases. ( )1.4 Diffusion capacity of the lungs is expected to increase with an increase in lung blood volume. ( )1.5 The alveoli have no cilia. ( )1.6 The concentration of oxygen in blood at a given saturation percentage can only change due to a change in dissolved oxygen. ( )1.7 Ventilation- perfusion ratio is highest at the top(apex) and lowest at the bottom (base) of the lungs in the upright posture. ( )1.8 Polycythemia refers to an anemic condition at high altitude where red cell production decreases due to hypoxia. ( )1.9 The partial pressure of carbon dioxide of mixed venous blood increases during exercise. ( )1.10 The arterial blood pH during heavy exercise can decrease due to anaerobic metabolism ( )1.11 Due to diabetes increased fat metabolism can lead to ketoacidosis which would be expected to lead to a rise in arterial blood bicarbonate from normal if arterial blood pH is at the normal level. ( )1.12
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test2 - BME 403 Respiration Section Exam Fall 2006 Closed...

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