What is the relationship between acidosis and potassium?

What is the relationship between acidosis and potassium?

• A. Acidosis shifts potassium into cells
• B. Acidosis shifts potassium to serum
• C. Acidosis lowers serum potassium
• D. Acidosis has no effect on potassium

Answer: (B)

Acidosis causes potassium to move out of cells into the extracellular fluid, raising serum potassium. When extra hydrogen ions accumulate outside the cells, they tend to enter the cells to help balance pH. To maintain electrical neutrality, potassium shifts out of the cells in exchange, so the extracellular potassium level increases. This is why acidosis is often associated with hyperkalemia. In contrast, alkalosis pushes potassium into cells, lowering serum potassium. Understanding this shift helps explain why correcting the acidosis can help normalize potassium levels and reduce the risk of potassium-related cardiac issues.

Acidosis causes potassium to move out of cells into the extracellular fluid, raising serum potassium. When extra hydrogen ions accumulate outside the cells, they tend to enter the cells to help balance pH. To maintain electrical neutrality, potassium shifts out of the cells in exchange, so the extracellular potassium level increases. This is why acidosis is often associated with hyperkalemia. In contrast, alkalosis pushes potassium into cells, lowering serum potassium. Understanding this shift helps explain why correcting the acidosis can help normalize potassium levels and reduce the risk of potassium-related cardiac issues.