ventilation
Differences
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| Both sides previous revisionPrevious revision | |||
| ventilation [2026/07/22 11:37] – gary1 | ventilation [2026/07/22 11:40] (current) – [A-a gradient] gary1 | ||
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| Line 47: | Line 47: | ||
| * high altitude or hypoxic environment | * high altitude or hypoxic environment | ||
| * **hypoxia with raised A-a gradient suggests either:** | * **hypoxia with raised A-a gradient suggests either:** | ||
| - | * V/Q mismatch | + | * V/Q mismatch |
| - | * right to left shunt | + | * right to left shunt eg. intracardiac, |
| - | * increased oxygen extraction | + | * increased oxygen extraction |
| + | * elevated metabolic activity | ||
| + | * physical exercise | ||
| + | * hyperthyroidism | ||
| + | * decreased oxygen delivery | ||
| + | * anaemia | ||
| + | * low blood flow to tissues eg. [[shock]] | ||
| * diffusion defect (less common) | * diffusion defect (less common) | ||
ventilation.txt · Last modified: 2026/07/22 11:40 by gary1