Preview Mode Links will not work in preview mode

Emergency Medical Minute


Jun 23, 2021

Contributor:  Nick Tsipis, MD

Educational Pearls:

  • pH <7.35 = acidemia; pH>7.45=alkalemia
  • If pH low and pCO2 high, indicates a respiratory acidosis
  • If pH low and pCO2 low, indicates metabolic acidosis
  • After determining type of acidosis, check bicarb to determine compensation for acidosis and check electrolytes to calculate anion gap
  • Metabolic acidosis can present with tachypnea (Kussmaul breathing) and hypotension due to loss of catecholamine function and suboptimal cardiac function at low pH
  • Treat with IV fluids and address the underlying cause, limited role for bicarb


Burger MK, Schaller DJ. Metabolic Acidosis. [Updated 2020 Nov 20]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan.

Cadogan M. Acid Base Disorders. Life in the Fast Lane • LITFL. Published November 3, 2020. Accessed June 23, 2021.

Summarized by John Spartz, MS4 | Edited by Erik Verzemnieks, MD


The Emergency Medical Minute is excited to announce that we are now offering AMA PRA Category 1 credits™ via online course modules. To access these and for more information, visit our website at and create an account. 

Donate to EMM today!