Answer :
Final answer:
In the compensatory stage of shock, Ventilation perfusion mismatch occurs, resulting in decreased PAO₂ and increased respirations.
Explanation:
In the compensatory stage of shock, blood flow to the lungs is decreased, resulting in ventilation perfusion mismatch. This means that there is an imbalance between the amount of air reaching the alveoli and the amount of blood flowing through the pulmonary capillaries.
As a result of this mismatch, the PAO₂ (partial pressure of oxygen in the alveoli) decreases, leading to decreased oxygenation of the blood. In response, respiration increases in an attempt to improve gas exchange and compensate for the reduced oxygen levels in the blood.
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