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Exam 3
Ch. 25 Antidysrythmics
| Term | Definition |
|---|---|
| quinidine (Qinidex), a class 1a sodium channel blocker, what are the adverse effects? | AE: CINCHONISM, cardiotoxicity, dizziness, DIARRHEA, strong anticholinergic effects--TACHYCARDIA!, GI upset |
| action of quinidine (Qinidex) | Wides QRS complex, prolongs QT intervals |
| Nursing interventions for quinidine | Give with food, tell pt not to change brands |
| Procainamide, a class 1a sodium channel blocker is similar in actions as quinidine, but what can it cause with prolonged use? | -systemic LUPUS erythematous -cardiotoxicity, QT prolongation, AGRANULOCYTOSIS |
| lidocaine (Xylocaine) a Class 1b is used short term only for ventricular dysrythmias. How do you administer it? | IV only (d/t large first pass effect), bolus followed by continuous infusion. |
| what are the expected SE of lidocaine? | PARESTHESIAS, drowsiness, confusion, toxic doses causes seizures and bronchospasm |
| What are the NI for lidocaine? | monitor continuosly, watch both pump and heart monitor |
| What drugs interact with lidocaine? | phenytoin, amiodarone, quinidine, procainmide, verapamil, beta blockers (all other antidysrythmics) |