Arterial Blood Gas Analysis · Pathology

Which ABG abnormality is typical in lactic acidosis?

  1. High pH, high HCO3−
  2. Low pH and low HCO3−
  3. Normal pH and high PaCO2
  4. High pH and low PaCO2
Show answer and explanation

Correct answer: Low pH and low HCO3−

Lactic acidosis produces excess lactic acid, lowering pH and bicarbonate levels. It is a form of high anion gap metabolic acidosis.

Difficulty: Medium Question 18 of 20

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