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Explain the condition which create problem in oxygen transport....... |
| Answer» Hypoxic hypoxia occurs when the\xa0PO2\xa0of arterial blood falls. This could occur because inspired\xa0PO2\xa0is lower than normal (high altitude) or it could be due to a respiratory problem (e.g., hypoventilation, diffusion impairment caused by pulmonary edema, ventilation–perfusion mismatch, or anatomic shunt of blood past the gas exchange region). In terms of O2\xa0transport, decreased arterial blood oxygenation (hypoxemia) is the primary limitation, and thus, the problem resides with the respiratory system. Oxygen delivery is abnormal since [O2]a\xa0is less than normal. The circulatory system responds in two ways to improve tissue oxygenation. | |