A patient with bicarbonate of 25, high CO2, and low pH is likely to have _____ respiratory failure.

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Multiple Choice

A patient with bicarbonate of 25, high CO2, and low pH is likely to have _____ respiratory failure.

Explanation:
High CO2 with a low pH indicates respiratory acidosis. The bicarbonate is normal, which means there hasn’t been time for renal compensation to raise bicarbonate. In acute respiratory failure, CO2 rises quickly and pH falls before the body can adjust bicarbonate levels. If it were chronic, bicarbonate would be elevated due to metabolic compensation; if it were metabolic acidosis, bicarbonate would be low and the CO2 pattern would reflect respiratory compensation rather than primary hypercapnia. So this presentation fits acute respiratory failure.

High CO2 with a low pH indicates respiratory acidosis. The bicarbonate is normal, which means there hasn’t been time for renal compensation to raise bicarbonate. In acute respiratory failure, CO2 rises quickly and pH falls before the body can adjust bicarbonate levels. If it were chronic, bicarbonate would be elevated due to metabolic compensation; if it were metabolic acidosis, bicarbonate would be low and the CO2 pattern would reflect respiratory compensation rather than primary hypercapnia. So this presentation fits acute respiratory failure.

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