What laboratory finding is typical in individuals abusing laxatives?

What laboratory finding is typical in individuals abusing laxatives?

• A. Increased potassium levels
• B. Hypokalemia and metabolic acidosis
• C. Hypernatremia and respiratory acidosis
• D. Elevated bicarbonate levels

Answer: (B)

In individuals abusing laxatives, a typical laboratory finding is hypokalemia and metabolic acidosis. Laxative abuse often leads to significant fluid and electrolyte imbalances due to increased gastrointestinal loss of potassium. As laxatives promote bowel movements, they can result in loss of not only water but also essential electrolytes like potassium. This electrolyte loss can cause hypokalemia, which is characterized by abnormally low levels of potassium in the blood. Moreover, the excessive fluid loss and alterations in acid-base balance from severe diarrhea can lead to metabolic acidosis. The loss of bicarbonate in stool or the depletion of other buffering agents in the body can contribute to this acidosis. Thus, the combination of low potassium levels and signs of acidosis is a classic consequence of laxative overuse, making hypokalemia and metabolic acidosis the most relevant laboratory finding in this context.

In individuals abusing laxatives, a typical laboratory finding is hypokalemia and metabolic acidosis. Laxative abuse often leads to significant fluid and electrolyte imbalances due to increased gastrointestinal loss of potassium. As laxatives promote bowel movements, they can result in loss of not only water but also essential electrolytes like potassium. This electrolyte loss can cause hypokalemia, which is characterized by abnormally low levels of potassium in the blood.

Moreover, the excessive fluid loss and alterations in acid-base balance from severe diarrhea can lead to metabolic acidosis. The loss of bicarbonate in stool or the depletion of other buffering agents in the body can contribute to this acidosis. Thus, the combination of low potassium levels and signs of acidosis is a classic consequence of laxative overuse, making hypokalemia and metabolic acidosis the most relevant laboratory finding in this context.