Aliases: None
Indications: Calcium channel- or beta-blocker overdose, hyperkalemia, hypocalcemia, hypermagnesemia, Hydrofluoric acid burn, Blood product transfusion; Cardiac arrest with presumed hyperkalemia or calcium channel-blocker overdose; Pulseless VF/VT.
Contraindications: None in the emergency setting
Concentrations:
Injection: 100mg/mL
Dosing
Adult:
| Indication | Dose | Route | Note |
| -Known or suspected hyperkalemia -Hemorrhagic Shock -Severe Hydrofluoric Acid Burn -Calcium channel or Beta blocker overdose | 1,000mg (1 gram) | IV Push | Ensure that the IV/IO line is patent before giving the medication |
Pediatric:
| Indication | Dose | Route | Note |
| -Known or suspected hyperkalemia -Hemorrhagic Shock -Severe Hydrofluoric Acid Burn -Calcium channel or Beta blocker overdose | 20mg/kg max 1,000mg (1 gram) | IV Push | Ensure that the IV/IO line is patent before giving the medication |
Precautions: Will cause tissue damage if it extravasates
Adverse/Side Effects: Arrhythmias including bradycardia or cardiac arrest, Syncope, N/V, Hypotension, Necrosis with extravasation. Calcium chloride will precipitate when used in conjunction with sodium bicarbonate, Toxicity with digitalis, and may antagonize the effects of calcium channel blockers
Class: Inotropic Agent (electrolyte)
Mechanism of Action: Replaces elemental calcium, which is essential for regulating excitation threshold of nerves and muscles. Calcium is also essential for blood clotting mechanisms, maintenance of renal function, and bone tissues. Calcium increases myocardial contractile force and ventricular automaticity. Additionally, it serves as an antidote for magnesium sulfate and calcium channel blocker toxicity.
| Onset of Action | Peak Effect | Duration of Action |
| Immediate | Immediate | Varies |