Bicarbonate Pediatric Dose — Resuscitation
Sodium bicarbonate is an alkalinizing agent that acts as a buffer by neutralizing excess hydrogen ions, thereby raising systemic pH. In pediatric resuscitation, it is used to correct severe metabolic acidosis when ventilation and perfusion have been optimized. Its use is generally reserved for specific clinical scenarios such as documented severe acidosis, hyperkalemia, or toxin-associated cardiac arrest.
Pediatric Dosing
- 1 mEq/kg IV (slow push)
For a 20 kg child: 20 × 1 mEq/kg = 20 mEq total. For a 10 kg child: 10 × 1 mEq/kg = 10 mEq total. Consult institutional protocol regarding repeat dosing intervals and maximum cumulative dose, as these are not specified in the source description.
Indications and Clinical Context
Sodium bicarbonate is indicated during pediatric resuscitation for the management of severe metabolic acidosis refractory to adequate ventilation and circulation restoration, as well as for specific conditions including hyperkalemia and certain toxicological emergencies (e.g., tricyclic antidepressant overdose). Per PALS guidelines, routine use of bicarbonate during cardiac arrest is not recommended; it should be considered only after effective chest compressions, ventilation, and vasopressor therapy have been established.
The rationale for its use is correction of acidosis-driven myocardial depression and restoration of a pH environment more conducive to endogenous catecholamine activity and defibrillation success. Clinical decisions should be guided by arterial or venous blood gas analysis whenever feasible.
Administration and Monitoring
Sodium bicarbonate is administered intravenously (IV) as a slow push. In infants and young children, use the 0.5 mEq/mL (4.2%) concentration to reduce osmolality load and minimize the risk of hypernatremia and hyperosmolality. Flush the IV line thoroughly before and after administration, as bicarbonate is incompatible with calcium-containing solutions.
- Route: IV preferred; IO is acceptable in arrest scenarios when IV access is unavailable
- Concentration in infants: Dilute to 0.5 mEq/mL (4.2%) solution when possible
- Monitor: Serum sodium, pH, pCO₂, and serum potassium after administration
- Key risks: Hypernatremia, hyperosmolality, paradoxical intracellular acidosis, and inactivation of simultaneously administered catecholamines if co-infused
- Consult institutional protocol for repeat dosing guidance
Disclaimer: This article is an educational reference summarizing standard pediatric dosing values. It is not a substitute for clinical judgment. Always verify doses against institutional protocols, the current edition of authoritative references (e.g., Lexicomp, Harriet Lane Handbook, PALS guidelines), the patient’s accurate weight, and any patient-specific factors (renal/hepatic function, allergies, comedications) before administration.