Magnesium Sulfate

Question 1

Magnesium Sulfate:class

Answer 1

electrolyteanticonvulsant

Question 2

Magnesium Sulfate:indications

Answer 2

elclamptic seizures;asthma refractory to Albuterol or Atrovent;Tordades de Pointes;hypomagnesmia;ventricular dysrhythmias caused by digitalis toxicity

Question 3

Magnesium Sulfate:contraindications

Answer 3

heart blocks;myocardial damage

Question 4

Magnesium Sulfate:route

Answer 4

IV/IOIM

Question 5

Magnesium Sulfate:side effects

Answer 5

diaphoresis;facial flushing;hypotension - circulatory collapse;depressed reflexes;hypothermia;bradycardia;flaccid paralysis;respiratory depression;CNS depression;cardiac depression

Question 6

Magnesium Sulfate:drug actions

Answer 6

reduces striated muscle contractions;blocks peripheral neuromuscular transmission by reducing acetylcholine release at the myoneural junction

Question 7

Magnesium Sulfate:drug interactions

Answer 7

DO NOT combine with:other CNS depressants;Digitalis

Question 8

Magnesium Sulfate:adult dose

Answer 8

seizure associated with pregnancy:1-4 g IV w/ max dose of 30-40 g/daypulseless torsades de pointes or asthma:1-2 g diluted in 10 ml of D5W IV/IO pushtorsades w/ a pulse or AMI with hypomagnesemia:loading dose of 1-2 g in 50-100 ml of D5W over 5-60 min IV, follow with 0.5-1 g/hr IV, titrate to control torsades

Question 9

Magnesium Sulfate:precautions

Answer 9

have calcium gluconate or calcium chloride available to counter act if needed

Question 10

Magnesium Sulfate:pedi dose

Answer 10

pulseless torsades de pointes or torsades de pointes with a pulse:25-50 mg/kg IV/IO, max of 2 g, over 10-20 minasthma:25-50 mg/kg IV/IO, max of 2 g, over 15-30 min