cardiovascular meds:

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6 Terms

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Antidysrhythmic Medications

Class I Medications.  Class IA: Quinidine

MOA

Class IA - Sodium channel blocker - slows cardiac conduction & delays repolarization, decreasing O2 demand of the heart

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Use

  • Supraventricular tachycardia

  • Ventricular tachycardia

  • Atrial flutter

  • Atrial fibrillation

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Complications:

Diarrhea

Cinchonism

Cardiotoxicity

Therapeutic range - 2 to 5 mcg/mL

Hypotension

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Contraindications:

Complete heart block

Atypical V tach

Lupus

Use caution in clients with partial AV block, MG, liver or kidney disorders, HF, digoxin toxicity

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Drug/drug Interactions:

Beta blockers, cimetidine can increase effects

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Nursing Education:

Take med as prescribed

Do not crush or chew ER tabs