Ventricular Dysrhythmias Flashcards
Name three Ventricular Dysrhythmias.
Premature Ventricular Contraction (PVC)
Ventricular tachycardia
Ventricular fibrillation
Where do Premature Ventricular Contractions come from?
Derived from an ectopic focus in the VENTRICLES.
Does PVC come Earlier than the QRS should?
Yes
What are the characteristics of QRS during a Premature Ventricular Contraction?
QRS is WIDE AND DISTORTED in shape (wide,ugly beat). Typically does not perfuse.
Premature Ventricular Contractions follow a normal rhythm or p-wave (True/False)?
False
What causes Premature Ventricular Contractions?
Stimulants ELECTROLYTES hypoxia fever Exercise Emotional stress Cardiovascular Disease (CVD)
What drugs to use if patient has a tendency towards Premature Ventricular Contractions?
Beta-Blockers, lidocaine and amiodarone.
How do we decrease the likelihood of Premature Ventricular Contractions?
Treat the cause.
What are the Premature Ventricular Contraction (PVC) Subtypes?
Bigeminy- (every other beat). Every other beat is concerning because patient converting to Ventricular tachycardia. This is a CRISIS SITUATION!
Trigeminy- (every 3rd beat)
Quadrigeminy-(every 4th beat)
When should we notify Healthcare provider (HCP) concerning PVC’s?
New in Onset and INCREASE in FREQUENCY.
What is Ventricular Tachycardia?
Consists of 3 or more PVC’s together. Ectopic focus within the ventricles takes control and fires repeatedly. No ATRIAL contractions occurring.
Why is Ventricular tachycardia SERIOUS?
Decreases cardiac output/Lack of perfusion. This can be DEADLY!
What Ventricular tachycardia associated with?
MI (Myocardial Infarction) CAD (Coronary Artery Disease) Significant electrolyte abnormalities Heart failure Drug toxicity & Other Bad Things!
Ventricular tachycardia rate and rhythm?
150-200bpm, usually regular
When a patient is in V-tach the P-wave is evident and PR is measurable (True/False)
False