A patient has a sodium of 140, a chloride of 100, and a bicarbonate of 15 mmol per liter. What does the calculated anion gap indicate?
1An increased anion gap metabolic acidosis✓ 정답
2A normal anion gap metabolic acidosis
3A decreased anion gap
4A primary respiratory disturbance
해설
Subtracting chloride and bicarbonate from sodium gives 25, well above the reference range. An increased anion gap means unmeasured acids have accumulated. Ketoacidosis, lactic acidosis, renal failure, and certain intoxications are the classic causes.