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4 Cards in this Set
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Treatment of asxatic runs of VT (even in acute MI)
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just correct K and Mg, reperfusion as necessary. But do not need anti-dysrhythmics.
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Initial doses for electrocardioversion of mono- and polymorphic VT
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mono 100 J
poly 200 J |
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Types of VT
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Re-entrant (initiated by a PVC w/ current running through 2 areas w/ different refractory periods)
Triggered (R-on-T leading to alterations in depol/repol pattern) Pacer mediated (ventricular beat conducts retrograde through AV node and triggers, depolarizes atrium which triggers pacer) |
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Asxatic VT in ischemia
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1. Make sure K>4, Mg>2
2. Can use Esmolol if good BP (decreases automaticity) 3. Avoid anti-dysrhythmics |
