In an individual experiencing an asthma attack,arterial blood levels of PO₂ will decrease and arterial blood levels of PCO₂ will increase.

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During an asthma attack, there is airway constriction and inflammation that can make it difficult to breathe. This can lead to decreased oxygen exchange in the lungs and decreased levels of oxygen in the arterial blood (PO₂). At the same time, carbon dioxide (CO₂) that is produced by the body may not be able to be exhaled effectively, leading to increased levels of CO₂ in the arterial blood (PCO₂). This can result in respiratory acidosis, which can be dangerous if left untreated.

In an Individual Experiencing an Asthma Attack,arterial Blood Levels of PO₂