dysrhythmia Flashcards
possible sites of origin
(Atrial, Junctional)-supraventricular or ventricular
True arrhythmia
very disorganised rhythm
Tachycardia
Fast heart beat
Bradycardia
Heartbeat to slow
Ectopic pacemaker
Tissue other then SA node initiates a heart beat
Delayed after depolarisation
Build up of calcium in cells causing a train of action potentials
Re-Entry circuit
tissue abnormality causes action potentials to travel in circles
Congenital abnormalities
additional conducting pathway between atria and ventricles called the Kent bundles
Heart block
damage to conducting pathways disrupts atrial ventricular signalling
three types of treatment fo dysrhythmia
Drugs, electrical, Surgical
Electrical treatments
implanted pacemaker, Defibrillation