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OPRA Biomedical Sciences QUESTION #3807
Question 1
In respiratory acidosis caused by poor alveolar ventilation, what is the compensatory renal response to correct the blood pH?
  • Decrease the secretion of $\text{HCO}_3^-$ and thus increase the reabsorption of $\text{H}^+$
  • Increase the secretion of $\text{HCO}_3^-$ and thus decrease the reabsorption of $\text{H}^+$
  • Decrease the secretion of $\text{H}^+$ and thus increase the reabsorption of $\text{HCO}_3^-$
  • Increase the secretion of $\text{H}^+$ and thus increase the reabsorption of $\text{HCO}_3^-$✔️
Correct Answer Explanation
In respiratory acidosis, the kidneys compensate by increasing $\text{H}^+$ secretion and $\text{HCO}_3^-$ reabsorption to raise blood pH back towards normal.