Antiadysrhythmics Flashcards
These type of drugs effect the electrical properties of the heart.
Treat too fast - tachycardia
Treat too slow - bradycardia
Treat irregular
Antiadysrhythmics
- Class III
- This is an Advanced Cardiac Life Support drug.
- It is a potassium channel blocker
= delays *repolarization of the heart
It slows down conduction through the _ _ _ and reduces firing of the SA node.
- It is the most widely use antiarrhythmic especially for ventricular dysrhythmias but can cause *torsades de points (Ventricular Tachycardia that winds around the baseline.)
The adverse effects are:
- pulmonary ________
- sinus arrest
- AV block
- tremor
- headache
- _______ microdeposits
- thyroid dysfunction
- ________________ with grayish-blue skin deposits.
Amiodarone
delays
QRS
fibrosis
corneal
photosensitivity
Misc. Class
This is an Advanced Cardiac Life Support drug.
It is used for paroxysmal ________________ rhythms.
It decreases automaticity in the _ _ node and slows conduction.
*It is always given rapid IV.
The adverse effects:
- ____ rhythms
- dyspnea
- hypotension
- ______ flushing.
Adenosine
supraventricular
SA
slows
Facial
- Class I
- Block sodium channels
- They are not currently used in *emergency situations but _________ may be used as a ___________ medication to *suppress ventricular rhythms
Adverse effects –
- _______ vision
- tremor
- ____________ (tingling)
- headache.
________ is used as a topical anesthetic.
Quinidine/Lidocaine
maintenance
Blurred
paresthesias
Lidocaine
- Class IV
This drug is a Calcium Channel Blocker.
- ________ calcium influx in the SA node.
- It is used to slow rapid supraventricular rates
- used as an _ _ infusion in ICU patients to slow heart rates.
Adverse effects:
- ___________
- _____ failure
- edema
- hypotension
- constipation
Verapamil/Diltiazem
Inhibits
IV
bradycardia (slows)
heart
- Class II
- It is a beta blocker.
- It decreases automaticity of the SA node
- decreases __________ and contractility.
- It is used to slow the ___________ rate.
- It demonstrates decreased _________ in patients who have experienced MI and heart failure.
Metoprolol/Propranolol (Sotalol)
conduction
ventricular
mortality
