Multiple choice Which among the following does not characterise metabolic acidosis? In metabolic acidosis, pH is low. The anion gap is the calculated difference between the measured cations and the measured anions . An increased anion gap metabolic acidosis indicates the accumulation ketoacids or lactic acid. To maintain electroneutrality , the level of cations must be decreased. A normal anion gap metabolic acidosis indicates loss of bicarbonate. Reveal answer Fill a bubble to check yourself D Correct answer Explanation As electroneutrality is always maintained, the level of cations such as potassium and sodium ions must be increased, resulting in a raised anion gap.