Magnesium Sulfate

Card Set Information

Author:
Kgren
ID:
141551
Filename:
Magnesium Sulfate
Updated:
2012-03-14 10:46:52
Tags:
Paramedic Drugs
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Description:
Magnesium Sulfate
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  1. Class
    • Mineral
    • Electrolyte
    • Anti-arrhythmic
  2. Description
    • Salt that dissociates into Magnesium Cation (MG2+) and the sulfate anion when administered.
    • Essential for many biochemical reactions in the body
  3. Mechanism of Action
    • Physiological Calcium channel blocker
    • Blocks neuromuscular transmissions
    • Smooth muscle relaxant causing broncho & vasodilation
  4. Onset of Action
    • Onset: Immediate
    • Peak: Varies
    • Duration: 1hr
    • Half-life: N/A
  5. Indications
    • Cardiac- Torsade de Pointes
    • Respiratory- Severe bronchospasm, Asthma
    • OB: Pre-eclampsia, eclampsia
  6. Contraindications
    • Shock
    • Severe/Persistant HTN
    • 3rd degree heart block
    • dialysis pts
    • Hypocalcemia
  7. Precautions
    • Administer SLOWLY
    • Cardiac monitoring and vital signs
    • Check knee and bicep reflexes before admin.
    • Caution with renal insufficiency
    • Elevated Magnesium levels can occur
    • Calcium Chloride reverses effects
    • Cardiac Conduction abnormalities with digitalis
  8. Side Effects
    • Flushing
    • Respiratory depression
    • Drowsiness
    • Arrhythmias
    • Hypotension
    • Itching
    • Rash
    • Sweating
    • Bradycardia
    • decreased deep tendon reflexes
    • hypothermia
  9. Adult Dose
    • Cardiac- 1-2g diluted in 100ml D5W or NS over 5min as IV piggyback
    • Respiratory- 2g over 2-5min
    • OB- 4-6g slowly over 30min
  10. Pedi Dose
    Not Indicated
  11. Max Dose
    1-4g
  12. Route of Administration
    IV/IO/IM
  13. How Supplied
    Prefilled 1g or 2g vials

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