Magnesium Sulfate

Question 1

Magnesium Sulfate: Class

Answer 1

Electrolyte

Question 2

Magnesium Sulfate: Indications

Answer 2

Acute Asthma / Bronchospasm
Seizures of eclampsia (Toxemia of pregnancy).
Torsades de Pointes.
Hypomagnesemia.
TCA overdose-induced dysrhythmias.
Digitalis-induced dysrhythmias.
Class IIa agent for refractory VF and VT after administration of Amiodarone

Question 3

Magnesium Sulfate: Contraindications

Answer 3

• Heart blocks.
• Renal diseases.

Question 4

Magnesium Sulfate: Adult Dose

Answer 4

Adult: Seizure activity associated with pregnancy: 1-4 gm IV over 10 minutes.
Torsades de Pointes or Refractory VF/VT: 1-2 grams IV over 1-2 minutes.
For Bronchospasm: 2-4 gm IV in 100ml of NS over 5 minutes

Question 5

Magnesium Sulfate: Pediatric Dose

Answer 5

Pediatric: Asthma/bronchospasm, severe: 25-50 mg/kg over 10 minutes IV.
Usually mixed in 50-100ml of NS to be given IV.