What can cause acidosis?

What can cause acidosis?

• A. All of the above
• B. Excess accumulation of H+
• C. Insufficient HCO3 production
• D. Inadequate excretion of H+

Answer: (A)

Acidosis happens when there is a net increase in hydrogen ions or a loss of buffering base, tipping the balance toward acidity. The hydrogen ion concentration can rise directly, or buffering capacity can fall due to lower bicarbonate levels, and the body’s ability to remove acid can be impaired. Excess accumulation of H+ increases acidity because more free hydrogen ions are present in body fluids, whether from metabolic sources (like lactic or ketoacidosis) or from impaired elimination (such as respiratory retention of CO2, which forms more carbonic acid). If the kidneys aren’t producing enough bicarbonate, the main buffer in the blood, the ability to neutralize acids diminishes, leading to metabolic acidosis. Likewise, if the kidneys can’t excrete hydrogen effectively, acid builds up, also causing acidosis. Since all three scenarios can contribute to a higher hydrogen ion burden or a reduced buffering capacity, they all can cause acidosis.

Acidosis happens when there is a net increase in hydrogen ions or a loss of buffering base, tipping the balance toward acidity. The hydrogen ion concentration can rise directly, or buffering capacity can fall due to lower bicarbonate levels, and the body’s ability to remove acid can be impaired.

Excess accumulation of H+ increases acidity because more free hydrogen ions are present in body fluids, whether from metabolic sources (like lactic or ketoacidosis) or from impaired elimination (such as respiratory retention of CO2, which forms more carbonic acid). If the kidneys aren’t producing enough bicarbonate, the main buffer in the blood, the ability to neutralize acids diminishes, leading to metabolic acidosis. Likewise, if the kidneys can’t excrete hydrogen effectively, acid builds up, also causing acidosis.

Since all three scenarios can contribute to a higher hydrogen ion burden or a reduced buffering capacity, they all can cause acidosis.