Anest. intenziv. Med. 2025;36(3):188-193 | DOI: 10.36290/aim.2025.036
Bicarbonate in year 2025 - indications, contraindications, pitfalls and future perspectivesReview Article
- 1 Jednotka intenzivní péče, I. interní klinika, Lékařská fakulta v Plzni, Univerzita Karlova
- 2 Jednotka intenzivní péče, I. interní klinika, Fakultní nemocnice Plzeň
- 3 Biomedicínské centrum, Lékařská fakulta v Plzni, Univerzita Karlova
Hydrogencarbonate (bicarbonate) is a physiologically occurring weak anion that is essential for the regulation of acid-base balance. Sodium bicarbonate solutions of various concentrations are commonly used to correct severe metabolic acidosis and hyperkalemia, However, there is a lack of evidence to support the effectiveness of this intervention, Furthemore, the administration of hypertonic sodium-rich solution may be potentially harmful to certain patient groups. Conversely, the role for bicarbonate in a number of less traditional indications remains to be discovered.
Keywords: bicarbonate, acidosis, hyperkalemia, shock, intoxication, hyponatremia, rhabdomyolysis.
Received: April 28, 2025; Revised: July 9, 2025; Accepted: July 31, 2025; Prepublished online: September 23, 2025; Published: September 30, 2025 Show citation
ACS | AIP | APA | ASA | Harvard | Chicago | Chicago Notes | IEEE | ISO690 | MLA | NLM | Turabian | Vancouver |
References
- MacGillivray N. Dr Thomas Latta: the father of intravenous infusion therapy. J Infect Prev. 2009;10: S3-6. doi: 10.1177/1757177409342141.
Go to original source...
- Lam TI, Brennan-Minnella AM, Won SJ, Shen Y, Hefner C, Shi Y, et al. Intracellular pH reduction prevents excitotoxic and ischemic neuronal death by inhibiting NADPH oxidase. Proc Natl Acad Sci USA. 2013;110(46). doi: 10.1073/pnas.1313029110.
Go to original source...
Go to PubMed...
- Fujita M, Asanuma H, Hirata A, Wakeno M, Takahama H, Sasaki H, et al. Prolonged transient acidosis during early reperfusion contributes to the cardioprotective effects of postconditioning. Am J Physiol Heart Circ Physiol. 2007;292(4):H2004-8. doi: 10.1152/ajpheart.01051.2006.
Go to original source...
Go to PubMed...
- Bing OHL, Brooks WW, Messer JV. Heart muscle viability following hypoxia: Protective effect of acidosis. Science. 1973;180(4092):1297-8. doi: 10.1126/science.180.4092.1297.
Go to original source...
Go to PubMed...
- Stengl M, Ledvinova L, Chvojka J, Benes J, Jarkovska D, Holas J, et al. Effects of clinically relevant acute hypercapnic and metabolic acidosis on the cardiovascular system: an experimental porcine study. Crit Care. 2013;17(6). doi: 10.1186/cc13173.
Go to original source...
Go to PubMed...
- Crimi E, Taccone FS, Infante T, Scolleta S, Crudele V, Napoli C. Effects of intracellular acidosis on endothelial function: An overview. J Crit Care. 2012;27(2):108-18. doi: 10.1016/j.jcrc.2011.06.001.
Go to original source...
Go to PubMed...
- Schotola H, Toischer K, Popov AF, Renner A, Schmitto JD, Gummert J, et al. Mild metabolic acidosis impairs the β-adrenergic response in isolated human failing myocardium. Crit Care. 2012;16(4). doi: 10.1186/cc11468.
Go to original source...
Go to PubMed...
- Kellum JA, Song M, Li J. Extracellular acidosis and the immune response: clinical and physiologic implications. Crit Care. 2004;8(5):331. doi: 10.1186/cc2900.
Go to original source...
Go to PubMed...
- Jung B, Rimmele T, Le Goff C, Chanques G, Corne P, Jonquet O, et al. Severe metabolic or mixed acidemia on intensive care unit admission: incidence, prognosis and administration of buffer therapy. a prospective, multiple-center study. Crit Care. 2011;15(5). doi: 10.1186/cc10487.
Go to original source...
Go to PubMed...
- Fujii T, Udy AA, Nichol A, Bellomo R, Deane AM, El-Khawas K, et al. Incidence and management of metabolic acidosis with sodium bicarbonate in the ICU: An international observational study. Crit Care. 2021;25(1). doi: 10.1186/s13054-020-03431-2.
Go to original source...
Go to PubMed...
- Zhang Z, Zhu C, Mo L, Hong Y. Effectiveness of sodium bicarbonate infusion on mortality in septic patients with metabolic acidosis. Intensive Care Med. 2018;44(11):1888-95. doi: 10.1007/s00134-018-5379-2.
Go to original source...
Go to PubMed...
- Huang S, Peng Y, Wang L, Wang J, Zhou X, Cui X, et al. Effectiveness of sodium bicarbonate infusion on mortality for elderly septic patients with acute metabolic acidosis. Front Pharmacol. 2022;13. doi: 10.3389/fphar.2022.974271.
Go to original source...
Go to PubMed...
- El-Solh AA, Abou Jaoude P, Porhomayon J. Bicarbonate therapy in the treatment of septic shock: a second look. Intern Emerg Med. 2010;5(4):341-7. doi: 10.1007/s11739-010-0351-3.
Go to original source...
Go to PubMed...
- Cooper DJ, Walley KR, Wiggs BR, Russell JA. Bicarbonate does not improve hemodynamics in critically III patients who have lactic acidosis: A prospective, controlled clinical study. Ann Intern Med. 1990;112(7):492-8. doi: 10.7326/0003-4819-112-7-492.
Go to original source...
Go to PubMed...
- Mathieu D, Neviere R, Billard V, Fleyfel M, Wattel R., et al. Effects of bicarbonate therapy on hemodynamics and tissue oxygenation in patients with lactic acidosis: A prospective, controlled clinical study. Crit Care Med. 1991;19(11):1352-6. doi: 10.1097/00003246-199111000-00008.
Go to original source...
Go to PubMed...
- Zhang Z, Mo L, Ho KM, Hong Y. Association between the use of sodium bicarbonate and mortality in acute kidney injury using marginal structural Cox model. Crit Care Med. 2019;47(10):1402-8. doi: 10.1097/ccm.0000000000003927.
Go to original source...
Go to PubMed...
- Lo KB, Garvia V, Stempel JM, Ram P, Rangaswami J. Bicarbonate use and mortality outcome among critically ill patients with metabolic acidosis: A meta analysis. Heart Lung. 2020;49(2):167-74. doi: 10.1016/j.hrtlng.2019.10.007.
Go to original source...
Go to PubMed...
- Kim HJ, Son YK, An WS. Effect of sodium bicarbonate administration on mortality in patients with lactic acidosis: A retrospective analysis. PLoS One. 2013;8(6): e65283. doi: 10.1371/journal.pone.0065283.
Go to original source...
Go to PubMed...
- Jaber S, Paugam C, Futier E, Lefrant J-Y, Lasocki S, Lescot T, et al. Sodium bicarbonate therapy for patients with severe metabolic acidaemia in the intensive care unit (BICAR-ICU): a multicentre, open-label, randomised controlled, phase 3 trial. Lancet. 2018;392(10141):31-40. doi: 10.1016/s0140-6736(18)31080-8.
Go to original source...
Go to PubMed...
- Peters E, Antonelli M, Wittebole X, Nanchal R, Francois B, Sakr Y, et al. A worldwide multicentre evaluation of the influence of deterioration or improvement of acute kidney injury on clinical outcome in critically ill patients with and without sepsis at ICU admission: results from The Intensive Care Over Nations audit. Crit Care. 2018;22(1). doi: 10.1186/s13054-018-2112-z.
Go to original source...
Go to PubMed...
- Blank SP, Blank RM, Laupland KB, Tabah A, Gill D, Kumar A, et al. Sodium bicarbonate administration for metabolic acidosis in the intensive care unit: a target trial emulation. Intensive Care Med. 2025;51(6):1078-86. doi: 10.1007/s00134-025-07979-x.
Go to original source...
Go to PubMed...
- Tong L, Wu S, Li D, Cao Y, Liu H. Hyperchloremic metabolic acidosis potentially benefiting sodium bicarbonate therapy: A multi-center cohort study. Eur J Intern Med. 2025;132:67-75. doi: 10.1016/j.ejim.2024.10.001.
Go to original source...
Go to PubMed...
- Douglas ME. Alteration of oxygen tension and oxyhemoglobin saturation: A hazard of sodium bicarbonate administration. Arch Surg. 1979;114(3):326. doi: 10.1001/archsurg.1979.01370270096018.
Go to original source...
Go to PubMed...
- Munk P, Freedman MH, Levison H, Ehrlich RM. Effect of bicarbonate on oxygen transport in juvenile diabetic ketoacidosis. J Pediatr. 1974;84(4):510-4. doi: 10.1016/s0022-3476(74)80669-4.
Go to original source...
Go to PubMed...
- Battaglia FC, Makowski EL, Meschia G, Niernberg MM. The effect of THAM and sodium bicarbonate on the oxygen dissociation curve and pH difference across the red cell. Pediatr Res. 1968;2(3):193-7. doi: 10.1203/00006450-196805000-00006.
Go to original source...
Go to PubMed...
- Rodríguez-Gutiérrez R, Cámara-Lemarroy CR, Quintanilla-Flores DL, González-Moreno EI, González-Chávez JM, Lavalle-González FJ, et al. Severe ketoacidosis (pH ≤ 6.9) in type 2 diabetes: More frequent and less ominous than previously thought. Biomed Res Int. 2015;2015:134780. doi: 10.1155/2015/134780.
Go to original source...
Go to PubMed...
- Jung B, Huguet H, Molinari N, Jaber S. Sodium bicarbonate for the treatment of severe metabolic acidosis with moderate or severe acute kidney injury in the critically ill: protocol for a randomised clinical trial (BICARICU-2). BMJ Open. 2023;13(8):e073487. doi: 10.1136/bmjopen-2023-073487.
Go to original source...
Go to PubMed...
- SODium BICarbonate for Metabolic Acidosis in the Intensive Care Unit (SODa-BIC): a Multicentre, Randomised, Double-blind Clinical Trial ANZIC-RC/ASN001. Registered 26th Jan 2023. Registration number NCT05697770. Aust. N. Z. Clin. Trials.
- Multicentre evaluation of sodium bicarbonate in acute kidney injury in critical care (MOSAICC). ISRCTN14027629.
- Juneja D, Nasa P, Jain R. Metformin toxicity: A meta-summary of case reports. World J Diabetes. 2022;13(8):654-64. doi: 10.4239/wjd.v13.i8.654.
Go to original source...
Go to PubMed...
- Duhon B, Attridge RL, Franco-Martinez AC. Intravenous sodium bicarbonate therapy in severely acidotic diabetic ketoacidosis. Ann Pharmacother. 2013;47(7-8):970-5. doi: 10.1345/aph.1s014.
Go to original source...
Go to PubMed...
- Chua HR, Schneider A, Bellomo R. Bicarbonate in diabetic ketoacidosis - a systematic review. Ann Intensive Care. 2011;1(1). doi: 10.1186/2110-5820-1-23.
Go to original source...
Go to PubMed...
- Dhatariya KK, Glaser NS, Codner E, Umpierrez GE. Diabetic ketoacidosis. Nat Rev Dis Primers. 2020;6(1). doi: 10.1038/s41572-020-0165-1.
Go to original source...
Go to PubMed...
- Mahoney BA, Smith WAD, Lo D, Tsoi K, Tonelli M, Clase C. Emergency interventions for hyperkalaemia. Cochrane Libr. 2005;2016(9). doi: 10.1002/14651858.cd003235.pub2.
Go to original source...
Go to PubMed...
- Jessen MK, Andersen LW, Djakow J, Chong NK, Stankovic N, Staehr C, et al. Pharmacological interventions for the acute treatment of hyperkalaemia: A systematic review and meta-analysis. Resuscitation. 2025;(110489):110489. doi: 10.1016/j.resuscitation.2025.110489.
Go to original source...
Go to PubMed...
- Aickin CC, Thomas RC. An investigation of the ionic mechanism of intracellular pH regulation in mouse soleus muscle fibres. J Physiol. 1977;273(1):295-316. doi: 10.1113/jphysiol.1977.sp012095.
Go to original source...
Go to PubMed...
- Fenn WO, Rogers TA, Ohr EA. Muscle electrolytes in acid and alkaline solutions. Am J Physiol. 1958;194(2):373-8. doi: 10.1152/ajplegacy.1958.194.2.373.
Go to original source...
Go to PubMed...
- Aronson PS, Giebisch G. Effects of pH on potassium: New explanations for old observations. J Am Soc Nephrol. 2011;22(11):1981-9. doi: 10.1681/asn.2011040414.
Go to original source...
Go to PubMed...
- Oster JR, Perez GO, Vaamonde CA. Relationship between blood pH and potassium and phosphorus during acute metabolic acidosis. Am J Physiol Renal Physiol. 1978;235(4):F345-51. doi: 10.1152/ajprenal.1978.235.4.f345.
Go to original source...
Go to PubMed...
- Adrogué HJ, Madias NE. Changes in plasma potassium concentration during acute acid-base disturbances. Am J Med. 1981;71(3):456-67. doi: 10.1016/0002-9343(81)90182-0.
Go to original source...
Go to PubMed...
- Schwarz KC, Cohen BD, Lubash GD. Severe acidosis and hyperpotassemia treated with sodium bicarbonate infusion. Circulation. 1959;19(2):215-20. doi: 10.1161/01.cir.19.2.215.
Go to original source...
Go to PubMed...
- Blumberg A, Weidmann P, Ferrari P. Effect of prolonged bicarbonate administration on plasma potassium in terminal renal failure. Kidney Int. 1992;41(2):369-74. doi: 10.1038/ki.1992.51.
Go to original source...
Go to PubMed...
- Kim H-J. Combined effect of bicarbonate and insulin with glucose in acute therapy of hyperkalemia in end-stage renal disease patients. Nephron. 1996;72(3):476-82. doi: 10.1159/000188917.
Go to original source...
Go to PubMed...
- Blumberg A, Weidmann P, Shaw S, Gnädinger M. Effect of various therapeutic approaches on plasma potassium and major regulating factors in terminal renal failure. Am J Med. 1988;85(4):507-12. doi: 10.1016/s0002-9343(88)80086-x.
Go to original source...
Go to PubMed...
- Allon M, Shanklin N. Effect of bicarbonate administration on plasma potassium in dialysis patients: Interactions with insulin and albuterol. Am J Kidney Dis. 1996;28(4):508-14. doi: 10.1016/s0272-6386(96)90460-6.
Go to original source...
Go to PubMed...
- Lott C, Truhlář A, Alfonzo A, Barelli A, González-Salvado V, Hinkelbein J, et al. European Resuscitation Council Guidelines 2021: Cardiac arrest in special circumstances. Resuscitation. 2021;161:152-219. doi: 10.1016/j.resuscitation.2021.02.011.
Go to original source...
Go to PubMed...
- Eggertsen MA, Munch Johannsen C, Kovacevic A, Fink Vallentin M, Mørk Vammen L, Andersen LW, et al. Sodium bicarbonate and calcium chloride for the treatment of hyperkalemia-induced cardiac arrest: A randomized, blinded, placebo-controlled animal study. Crit Care Med. 2024;52(2):e67-78. doi: 10.1097/CCM.0000000000006089.
Go to original source...
Go to PubMed...
- Wang C-H, Huang C-H, Chang W-T, Tsai M-S, Yu P-H, Wu Y-W, et al. The effects of calcium and sodium bicarbonate on severe hyperkalaemia during cardiopulmonary resuscitation: A retrospective cohort study of adult in-hospital cardiac arrest. Resuscitation. 2016;98:105-11. doi: 10.1016/j.resuscitation.2015.09.384.
Go to original source...
Go to PubMed...
- Fraley DS, Adler S. Correction of hyperkalemia by bicarbonate despite constant blood pH. Kidney Int. 1977;12(5):354-60. doi: 10.1038/ki.1977.122.
Go to original source...
Go to PubMed...
- Conte G, Canton AD, Imperatore P, De Nicola L, Gigliotti G, Pisanti N, et al. Acute increase in plasma osmolality as a cause of hyperkalemia in patients with renal failure. Kidney Int. 1990;38(2):301-7. doi: 10.1038/ki.1990.200.
Go to original source...
Go to PubMed...
- Lavonas EJ, Akpunonu PD, Arens AM, Babu KM, Cao D, Hoffman RS, et al. 2023 American Heart Association focused update on the management of patients with cardiac arrest or life-threatening toxicity due to poisoning: An update to the American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. Circulation. 2023;148(16):e149-84. doi: 10.1161/CIR.0000000000001161.
Go to original source...
Go to PubMed...
- Hoffman JR, Votey SR, Bayer M, Silver L. Effect of hypertonic sodium bicarbonate in the treatment of moderate-to-severe cyclic antidepressant overdose. Am J Emerg Med. 1993;11(4):336-41. doi: 10.1016/0735-6757(93)90163-6.
Go to original source...
Go to PubMed...
- Pai K, Buckley NA, Isoardi KZ, Isbister GK, Becker T, Chiew AL, et al. Optimising alkalinisation and its effect on QRS narrowing in tricyclic antidepressant poisoning. Br J Clin Pharmacol. 2022;88(2):723-33. doi: 10.1111/bcp.15008.
Go to original source...
Go to PubMed...
- Hill JB. Salicylate intoxication. N Engl J Med. 1973;288(21):1110-3. doi: 10.1056/nejm197305242882107.
Go to original source...
Go to PubMed...
- Proudfoot AT, Krenzelok EP, Vale JA. Position paper on urine alkalinization. J Toxicol Clin Toxicol . 2004;42(1):1-26. doi: 10.1081/clt-120028740.
Go to original source...
Go to PubMed...
- Barceloux DG, Bond GR, Krenzelok EP, Cooper H, Vale JA. American academy of clinical toxicology practice guidelines on the treatment of methanol poisoning. J Toxicol Clin Toxicol. 2002;40(4):415-46. doi: 10.1081/clt-120006745.
Go to original source...
Go to PubMed...
- Kodadek L, Carmichael SP II, Seshadri A, Pathak A, Hoth J, Appelbaum R, et al. Rhabdomyolysis: An American association for the surgery of trauma critical care committee clinical consensus document. Trauma Surg Acute Care Open. 2022;7(1):e000836. doi: 10.1136/tsaco-2021-000836.
Go to original source...
Go to PubMed...
- Spasovski G, Vanholder R, Allolio B, Annane D, Ball S, Bichet D, et al. Clinical practice guideline on diagnosis and treatment of hyponatraemia. Eur J Endocrinol . 2014;170(3):G1-47. doi: 10.1530/eje-13-1020.
Go to original source...
Go to PubMed...
- Yunos NM, Bellomo R, Hegarty C. Association between a chloride-liberal vs chloride-restrictive intravenous fluid administration strategy and kidney injury in critically ill adults. JAMA. 2012;308(15):1566. doi: 10.1001/jama.2012.13356.
Go to original source...
Go to PubMed...
- Yeh P, Pan Y, Sanchez-Pinto LN, Luo Y. Hyperchloremia in critically ill patients: association with outcomes and prediction using electronic health record data. BMC Med Inform Decis Mak. 2020;20(S14). doi: 10.1186/s12911-020-01326-4.
Go to original source...
Go to PubMed...
- Wong DW, Mishkin FS, Tanaka TT. The effects of bicarbonate on blood coagulation. JAMA. 1980;244(1):61-2. Doi: 10.1001/jama.1980.03310010047028.
Go to original source...
- Wathanavasin W, Phannajit J, Poosoonthornsri M, Lewsuwan S, Tanateerapong P, Chongthanakorn K, et al. A randomized controlled trial of comparative efficacy between sodium bicarbonate and heparin as A locking solution for tunneled central venous catheters among patients requiring maintenance hemodialysis. Can J Kidney Health Dis. 2021;8:20543581211046077. doi: 10.1177/20543581211046077.
Go to original source...
Go to PubMed...
- El-Hennawy AS, Frolova E, Romney WA. Sodium bicarbonate catheter lock solution reduces hemodialysis catheter loss due to catheter-related thrombosis and blood stream infection: an open-label clinical trial. Nephrol Dial Transplant. 2019;34(10):1739-45. doi: 10.1093/ndt/gfy388.
Go to original source...
Go to PubMed...
- Islam M. Sodium bicarbonate is a potential alternative to classic heparin as a lock solution for non-tunneled dialysis catheters: a result from the prospective randomized BicarbLock trial. Int Urol Nephrol. 2024;56(4):1465-74. doi: 10.1007/s11255-023-03821-9.
Go to original source...
Go to PubMed...
- Nagai S, Hiraiwa H, Ito R, Koyama Y, Kondo K, Kazama S, et al. Usefulness of bicarbonate-based Impella purge solution in a patient with heparin-induced thrombocytopenia: the first case report of long-term management in Japan. J Artif Organs. 2025;28(1):83-9. doi: 10.1007/s10047-024-01452-0.
Go to original source...
Go to PubMed...
- Van Edom C, Van Puyvelde T, Jacobs S, Vandenbriele C. Switch to a bicarbonate-based Impella CPTM purge solution in a patient with haemothorax: a case report. Eur Heart J Case Rep. 2023;7(1):ytad022. doi: 10.1093/ehjcr/ytad022.
Go to original source...
Go to PubMed...
- Bergen K, Sridhara S, Cavarocchi N, Silvestry S, Ventura D. Analysis of bicarbonate-based purge solution in patients with cardiogenic shock supported via Impella ventricular assist device. Ann Pharmacother. 2023;57(6):646-52. doi: 10.1177/10600280221124156.
Go to original source...
Go to PubMed...