Occurs when a person breathes shallowly or when gas exchange is hampered by disease.
Added by Maria V.
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Step 1: Identify the condition being described, which is characterized by shallow breathing or impaired gas exchange. Show more…
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Patient W has experienced a sudden loss in endurance over the past several months. His cardiac output is strong, but his heart rate is much higher than normal. His alveolar PO2 is about 150 mmHg, higher than normal, and he is breathing hard all of the time. His alveolar PCO2 is 20 mm Hg, lower than normal. His arterial PO2 is lower than normal, as is his arterial percent hemoglobin saturation (which is below 70%). At what step in the transport of gases between atmosphere and tissues is a problem occurring? Explain your answer. 5 pts Explain a disease process that could cause this problem. 5 pts Patient G has also lost endurance. She has a high ventilation and high heart rate at rest. Her exhaled, alveolar PO2 and arterial PO2 and PCO2 values are all normal, as is her hemoglobin percent saturation. Venous PO2 is very low. At what step in the transport of gases between atmosphere and tissues is a problem occurring? Explain your answer. 5 pts Explain a disease process could cause this to occur. 5 pts
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