Amiodarone - Northwestern Medicine
Transcript of Amiodarone - Northwestern Medicine
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Amiodarone
McHenry Western Lake County
EMS
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• During this session we will discuss:
• Class
• Actions
• Indications
• Contraindications
• Dosing/Routes
• How supplied
• Precautions
• Side effects
Objectives
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Class:
• Antidysrhythmic
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Actions:• Class III antidysrhythmic: (potassium channel
blockers) has a property of all 4 VW classes. Lengthens cardiac action potential; slows AV conduction; prolongs QT intervals, blocks Sodium, Potassium, and Calcium channels, and alpha and beta receptors.
• Has a negative chronotropic and dromotropic effects. (chronotropic = relates to the heart)
(dromotropic = relates to conduction)
• Vasodilates = decreases cardiac workload and myocardial 02 consumption
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Indications:
• Ventricular Tachycardia and Ventricular
Fibrillation.
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Dosing/Routes:
• Adult VT: 150 mg mixed with 50 ml of NS IVP over 10 minutes.
• Adult VF: 300 mg IVP/IO. 2nd dose 150 mg IVP/IO
• Onset is 1-30 minutes and duration is 1-3 hours.
• Peds VT: 5mg/kg (max 150mg) mixed with NS (to total volume of 20 ml) slow IV/IO over 20 minutes.
• Peds VT: 5 mg/kg IVP: Max single dose of 300mg
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How supplied:
• 150mg in 10ml
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Important!
• Hold ampule at a slight angle, insert
needle into deepest level of ampule to
withdraw the solution. Do not use filter
needle or invert ampule to withdraw
solution.
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Contraindications:
• Known allergies
• Allergy, severe bradycardia, 2ºor 3º AV
blocks, Torsades de Pointes.
• Stop if QRS widens to >50% of baseline.
• Breast feeding
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Precautions:
• Incompatible with Sodium Bicarbonate.
• Use with caution in patients with liver failure.
• VT: If B/P falls slow the rate of administration
• VF: Post resuscitation, if B/P falls treat with fluids and or Dopamine.
• May prolong QT interval-don’t use for Torsades.
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Side effects/adverse
reactions:
• Monitor BP and ECG when given to
patient w/ perfusing rhythm.
• CNS: Headache and dizziness
• GI: Nausea (4%)
• CV: Hypotension (16%) Bradycardia (5%),
sinus arrest, CHF, dysrhythmias
Ref: MWLCEMS Protocol and 2000 Mosby’s Nursing Drug Reference Book
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DO NOT SHAKE!!
Bubbles will form in the vial
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Case Study
• You have been called to the scene of a
Man Down. CPR has been started and
Defibrillation has been performed. You and
your crew are continuing CPR. What
would be the correct dose of Amiodarone
that would give your patient.
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Answer:
• 300 mg IVP/IO.
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• You have decided to give a second dose
of Amiodarone. What would be the correct
dose for this administration.
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• 2nd dose of Amiodarone would be 150 mg
IVP/IO.