Mag Sulphate

Question 1

Magnesium Sulphate Injection

Class

Answer 1

Electrolyte and Tocolytic agent

Question 2

Magnesium Sulphate Injection

Description

Answer 2

It is a salt that is an essential element in numerous biochemical reactions that occur within the body

Question 3

Magnesium Sulphate Injection

Presentation

Answer 3

5g in 10mL ampoule

Question 4

Magnesium Sulphate Injection

Administration

Answer 4

Intravenous (IV)

Intraosseous (IO)

Question 5

Magnesium Sulphate Injection

Indications

Answer 5

Life Threatening Asthma
Torsades de pointes
Persistent Bronchospasm
Seizure associated with eclampsia

Question 6

Magnesium Sulphate Injection

Contraindications

Answer 6

None in cardiac arrest

KSAR

Question 7

Magnesium Sulphate Injection

Dosage

Answer 7

Adult:
Life Threatening Asthma: 2g IV Infusion over 20 mins
Torsades (with pulse): 2g IV infusion over 15 minutes
Bronchospasm: 2g IV infusion over 20 minutes
Seizure with Eclampsia: 4g IV infusion over 15 mins

Paed: not indicated

Question 8

Magnesium Sulphate Injection

Pharmacology

Answer 8

It acts as a physiological calcium channel blocker and blocks neuromuscular transmission

Question 9

Magnesium Sulphate Injection

Side Effects

Answer 9

Bradycardia (during infusion, give slowly)
Arrhythmias
Coma
Confusion
Drowsiness
Flushing of skin
Hypotension
Decreased deep tendon reflexes, 
Muscle Weakness
Nausea and Vomiting
Respiratory depression, 
Thirst

Question 10

Magnesium Sulphate Injection

Additional Info

Answer 10

Dilute in 100mL NaCl for infusion

5g in 10ml is equivalent to 20mmol/mg