Magnesium Sulfate

Question 1

Mag: generic name

Answer 1

Magnesium sulfate

Question 2

Mag: trade name

Answer 2

Magnesium sulfate

Question 3

Mag: class

Answer 3

Antiarrhythmetic, electrolyte and anticonvulsant

Question 4

Mag: action

Answer 4

↓ striated muscle contractions and blocks peripheral neuromuscular transmission by reducing acetylcholine release at myoneural junction. Reverses refractory VF caused by hypomagnesemia and aids in replenishment of intracellular potassium. Manages seizure in eclampsia pts.

Question 5

Mag: indications

Answer 5

Life threatening ventricular arrhythmias due to digitalis toxicity, refractory VF, pulseless VT, torsades de pointes, preeclampsia and eclampsia, adjunctive to alleviate bronchospasm in acute asthma

Question 6

Mag: contraindications

Answer 6

Heart block or myocardial damage

Question 7

Mag: S. E.

Answer 7

CNS depression, hypotension, circulatory collapse, depression of myocardium, sweating, hypothermia, muscle paralysis, respiratory paralysis, suppression of knee jerk reflex, changes in EKG (↑ PRI, ↑ QRS complex, prolonged QT interval

Question 8

Mag: adult dose

Answer 8

Tosades de pointes: 1-2g IV/IO

VF/Pulseless VT: 1-2g over 1-2m

Eclampsia: 1-4g IV/IO/IM

Question 9

Mag: pedi dose

Answer 9

25-50mg/kg IV/IO

Question 10

Mag: precautions

Answer 10

Should be administered cautiously in the presence of a impaired renal failure. Morphine and Valium potentiate respiratory depression when given to pt receiving MGS04. Toxicity level is 10mg/dL