What is the general action of Class I antiarrhythmics?
Explanation
This question tests for the main mechanism of action for the entire Class I category of antiarrhythmic drugs.
Other questions
What is the primary therapeutic goal for a patient taking antiarrhythmic medications?
What is the mechanism of action for Class IA antiarrhythmic drugs such as quinidine and procainamide?
Lidocaine, phenytoin, and mexiletine are classified under which subclass of antiarrhythmic drugs?
Which class of antiarrhythmics functions as beta-blockers, working to decrease AV nodal conduction and automaticity?
Amiodarone and sotalol are examples of Class III antiarrhythmics which primarily act as what type of channel blockers?
Diltiazem and verapamil are classified as Class IV antiarrhythmics. What is their mechanism of action?
What does the abbreviation 'ERP' stand for in the context of antiarrhythmic drug mechanisms?
According to the nursing implications for antiarrhythmics, what should be monitored continuously throughout IV administration?
What is the recommended nursing action if a patient's heart rate is below 50 bpm before the administration of an oral antiarrhythmic dose?
What advice should a nurse provide to a patient about taking oral antiarrhythmic doses to ensure consistent therapeutic levels?
What instruction should be given to a patient taking antiarrhythmics regarding over-the-counter (OTC) medications?
What should a patient on antiarrhythmic therapy be advised to carry at all times?
According to the provided text, what is a desired outcome for a patient who has been successfully treated with antiarrhythmic therapy?
Before initiating antiarrhythmic therapy, what underlying issues should be corrected first?
Which class of antiarrhythmic drugs includes agents that profoundly slow conduction by blocking Na channels and markedly depress phase 0?
What is a key nursing diagnosis related to the primary indication for antiarrhythmic therapy?
Propafenone, a Class IC antiarrhythmic, has properties of which other drug class in addition to its Na channel blockade?
What should be evaluated in elderly patients and those with renal or hepatic impairment when using antiarrhythmics?
What is the general use of antiarrhythmic drugs?
Besides their primary classifications, which other three drugs are also mentioned as being used as antiarrhythmics?
In the mechanism of action table for major antiarrhythmic drugs, what does 'Na' represent?
What is the effect of Class IB antiarrhythmics, like lidocaine, on the action-potential duration (APD) and effective refractory period (ERP)?
Which Class III antiarrhythmic agent also has beta-blocking properties?
What is a crucial part of the nursing assessment for a patient on antiarrhythmic therapy, as mentioned in the Nursing Implications?
A patient asks the nurse why they need to have their pulse taken by the nurse before getting their oral antiarrhythmic pill. What is the best explanation?
Which drug is a Class IB antiarrhythmic?
What is one of the potential nursing diagnoses listed for a patient taking antiarrhythmics related to knowledge?
What is the key teaching point regarding changes in pulse rate or rhythm for a patient on antiarrhythmic therapy?
Which class of antiarrhythmics does esmolol belong to?
What is the primary action of Class II antiarrhythmics on automaticity?
The choice of an antiarrhythmic agent depends on the etiology of the arrhythmia and what other factor?
In the mechanism of action table for major antiarrhythmic drugs, what does 'AV' stand for?
What is the general classification of antiarrhythmics based on?
What is an important teaching point for a patient or their family member regarding pulse monitoring at home?
Which drug belongs to the Class IC antiarrhythmic category?
What is the effect of Class IA antiarrhythmics on membrane responsiveness?
What is the primary route of administration for which continuous monitoring of ECG, pulse, and BP is recommended?
What is the potential outcome of antiarrhythmic therapy, besides resolution of arrhythmia?
Which Class of antiarrhythmics are Non-dihydropyridine Ca channel blockers?
What does the text on page 36 emphasize regarding patient follow-up exams?
Which drug is an example of a Class II antiarrhythmic?
Which class of antiarrhythmic drugs contains agents that have Na channel, beta-receptor, and Ca-channel blocking properties in addition to their primary mechanism?
What is the recommended timing for taking an apical pulse in relation to oral antiarrhythmic administration?
The text states that antiarrhythmics correct cardiac arrhythmias by a variety of mechanisms, depending on what?
In the context of major antiarrhythmic drugs, what does 'K' stand for?
The contraindications and precautions for antiarrhythmics are described in the text as:
Which nursing implication is critical for safe IV administration of antiarrhythmics?
Which drug is a Class IA antiarrhythmic?
What is the general action of Class III antiarrhythmics?