What is the interpretation of a blood gas that shows a pH of 7.10, a PaCO₂ of 50 mm Hg, and an [HCO₃-] of 15 mEq/L?

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A combined acid-base disturbance is one in which respiratory and metabolic factors join to promote the same type of acid-base disturbance. For example, consider the following blood gas results: pH = 7.10 PaCO₂ = 50 mm Hg HCO₃- = 15 mEq/L The acidotic pH is caused by both respiratory (PaCO₂) and metabolic (HCO₃^-) factors. Two primary disturbances coexist in this example. Therefore, compensation is not possible. These blood gases may occur in a cardiopulmonary arrest. Lack of ventilation leads to respiratory acidosis, and lack of blood flow leads to tissue hypoxia and lactic acidosis.

What Is the Interpretation of a Blood Gas That Shows