Neonatal Drug Therapy Manual

Calcium Gluconate

Disclaimer: Official controlled document is the CHEO and Ottawa Hospital online copy. It is the responsibility of user to ensure that any paper copy version is the same as the online version before use.

Classification: 
Electrolyte
Original Date: 
June 1996
Revised Date: 
Jan 2026
Indications: 
  • Treatment/ prevention of hypocalcemia
  • Hyperkalemia with ECG changes
Administration: 

Central line preferred

IV Direct (NRP):

  •  in life threatening situations only: over 1 minute
  •  in cardiac arrest: may give over 10-20 seconds

IV intermittent infusion: 

  • symptomatic hypocalcemia: over 30 - 60 minutes
  • hyperkalemia with ECG changes: over 30 minutes; can be given over 5-10 minutes if unstable

 

IV continuous infusion:

  •  for maintenance calcium replacement
Dosage: 
  • Life threatening situation  (i.e. VT, wide QRS or cardiac arrest in the presence of hyperkalemia or hypocalcemia): 60 - 100 mg/kg/dose of calcium gluconate 10% (0.6 to 1 mL/kg/dose of calcium gluconate 10% undiluted)
  • Symptomatic hypocalcemia: 50 -  200 mg/kg/dose of calcium gluconate 
  • Hyperkalemia with ECG changes: 50 - 100 mg/kg/dose of calcium gluconate 
  • Maintenance: 0.5 to 1.5 mmol/kg/day of elemental calcium
    • 10 mmol/L (0.01 mmol/mL) of elemental calcium at a TFI of 60 to 140 mL/kg/day will provide 0.6 to 1.4 mmol/kg/day of elemental calcium
    • 16 mmol/L (0.016 mmol/mL) of elemental calcium at a TFI of 60 to 140 mL/kg/day will provide 1 to 2.2 mmol/kg/day of elemental calcium
  • For exchange blood transfusion in the newborn: calcium gluconate diluted to 50 mg/mL - Take 1 mL (100 mg) and add to 1 mL of D5W for a final concentration of 50 mg/mL.  Administer 100 mg (2 mL) over 1 minute as a slow bolus in pulses during the procedure for every 100 mL of blood transfused
Side Effects: 
  • CVS: bradycardia with rapid administration
  • Miscellaneous: tissue necrosis with extravasation
Parameters to Monitor: 
  • HR
  • Injection site
  • Calcium levels
Reconstitution and Stability: 

IV Direct:

  • Undiluted 10% Calcium Gluconate (life-threatening conditions only)
  • 10% = 100 mg/mL of calcium gluconate
     

IV intermittent infusion:

  • CHEO: premixed syringe of calcium gluconate 50 mg/mL available from PICU medication cabinet.
  • ​TOH:
    • Calcium gluconate 10% (100 mg/mL):
      • Take 5 mL (500 mg) and add to 5 mL of D5W
      • Final concentration: 50 mg/mL
         

IV continuous infusion:

  • CHEO: prepared by pharmacy
     
  • TOH
    • Total volume = 250 mL - use a new bag
      • Calcium gluconate 10% (100 mg/mL = 0.23 mmol/mL of elemental Ca)
        • Take 11 mL (2.53 mmol) add to 250 mL of IV fluids
        • Final concentration: elemental calcium 10 mmol/L (0.01 mmol/mL)
      • Calcium gluconate 10% (100 mg/mL = 0.23 mmol/mL of elemental Ca)
        • Take 19 mL (4.37 mmol) add to 250 mL of IV fluids
        • Final concentration: elemental calcium 16 mmol/L (0.016 mmol/mL)

 

To add to Protein/Dextrose bag of 100 mL - always use a new bag

  • Calcium gluconate 10% (100 mg/mL =0.23 mmol/mL of elemental Ca)
    • Take 4.5 mL (1.04 mmoL) add to 100 mL of IV fluids
    • Final concentration: elemental calcium 10 mmol/L  (0.01 mmol/mL)
  • Calcium gluconate 10% (100 mg/mL = 0.23 mmol/mL of elemental Ca)
    • Take 7.5 mL (1.72 mmoL) add to 100 mL of IV fluids
    • Final concentration: elemental calcium 16 mmol/L (0.016 mmol/mL)

 

TFI (mL/kg/day)

Calcium 10 mmol/L

Ca provided (mmol/kg/day)

Calcium 16 mmol/L

Ca provided (mmol/kg/day)

60 0.6 0.96
80 0.8 1.28
100 1 1.6
120 1.2 1.92
140 1.4 2.24

 

 

Compatibility: 

- Solutions Compatible: D5W, D10W, 0.9% NaCl, dextrose-saline combinations

- Y-site Compatible: amino acids and dextrose (dependent of many factors - consult pharmacy), gentamicin, heparin, KCl (up to 40 mmol/L), tobramycin

- Incompatible: Fluconazole

 

Notes: 

Calcium gluconate 10% contains 100 mg/mL of calcium gluconate and is equivalent to 9.3 mg/mL of elemental calcium (0.23 mmol/mL)

References: 

-Taketomo CK, Hodding JH, Kraus DM. Pediatric Dosage Handbook 22nd Edition. Hudson: Lexi-Comp Inc.; 2015

-American Society of Health-System Pharmacists (ASHP). Handbook on Injectable Drugs. 19th Edition. Bethesda: ASHP; 2017

- Ogunlesi TA, Lesi FEA. Prophylactic intravenous calcium therapy for exchange blood transfusion in the newborn. Cochrane Database of Systematic Reviews 2014, Issue 3. Art.No.: CD011048. DOI:10.1002/14651858. CD011048

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