Anti-dysrhythmic classes
This class of antidysrhythmic drugs blocks sodium channels
What are class I antidysrhythmics?
This medication is the first-line drug for symptomatic bradycardia
What is atropine?
Beta-blockers reduce heart rate by blocking these receptors
What are beta-1 adrenergic receptors?
A common side effect of beta blockers that requires monitoring?
What is bradycardia?
Before giving a beta blocker the nurse must check these two vitals signs
What are heart rate and blood pressure?
Beta blockers belong to this class of antidysrhythmic drugs
What is class II?
This drug is used to treat supraventricular tachycardia and causes a brief asystole
What is adenosine?
This ion channel is blocked by Class III antiarrhythmics
What are potassium channels?
Amiodarone requires monitoring of these three systems due to long term toxicities
What are the lungs, thyroid, and liver?
After administering adenosine the nurse should warn the patient about this expected feeling
What is a brief pause/asystole or chest discomfort?
Amiodarone and sotalol are in this class
What is Class III (potassium channel blockers)?
This Class III drug treats atrial and ventricular dysrhythmias but has many toxicities
What is amiodarone?
Adenosine works by slowing conduction through this node
What is the AV node?
This is the most common adverse effect of diltiazem
What is peripheral edema?
A patient is on amiodarone the nurse should notify the provider if there is any change in heart rate greater than this or less than this
What is greater than 100 or less than 60?
Calcium channel blockers like diltiazem and verapamil are in this class of antidysrhythmics
What is class IV?
This beta blocker is commonly used acutely to control rate in atrial fibrillation
What is metoprolol?
Calcium channel blockers decrease heart rate and contractility by inhibiting this ion's influx
What is calcium?
Lidocaine toxicity commonly affects this body system
What is the central nervous system?
Patients on amiodarone should avoid this due to photosensitivity
What is sun exposure?
The class that slows conduction by decreasing automaticity through sodium channel blockage and is subdivided into IA, IB, and IC
What is Class I?
This sodium channel blocker (Class IB) is used for ventricular dysrhythmias and can cause CNS toxicity
What is lidocaine?
Amiodarone affects multiple ion channels, but it primarily prolongs this part of the cardiac action potential
What is the repolarization phase?
This occurs in almost all patients treated for more than 2 months with amiodarone and can lead to blurry vision
What is corneal microdeposits?
For digoxin therapy, nurses should monitor for this common electrolyte imbalance that increases digoxin toxicity risk
What is hypokalemia?