Supraventricular tachycardia – ( abbr. SVT ). An arrhythmia in which the impulse stimulating the heart is not generated by the sinus (SA) node, but instead comes from a collection of tissue around and involving the atrioventricular (AV) node. The electrical impulses from this abnormal site are generated at a rapid rate, which may reach 280 beats per minute.
cardiac arrhythmia, momentarily loss of pulse, and sometimes producing accompanying palpitations (abnormal heartbeat that is often associated with a sensation of fluttering or thumping). Premature ventricular contraction – ( Abbr. PVC ) An early impulse firing of the ventricles causing the ventricles to beat early, resulting in momentary
Premature atrial contraction ( PAC ): The atria fires an early impulse which causes the heart to beat earlier causing irregularity in the heart rhythm.
Ventricular flutter – A rare, dangerous condition that does not last long since it usually deteriorates quickly into ventricular fibrillation.
Fibrillation - Fine, rapid, uncoordinated twitching of individual muscle fibers with little or no movement of the muscle as a whole. This condition can occur in either the atria or the ventricles .
Atrial fibrillation - Fibrillation in which the normal rhythmical contractions of the atria are replaced by rapid, irregular twitchings of the atrial walls as a result of many sites within the atria firing electrical impulses in an irregular fashion. This causes the ventricles to respond irregularly resulting in an irregular heart beat. Also called a-fib .
Ventricular fibrillation - An often fatal form of arrhythmia characterized by rapid, irregular, uncoordinated spasms or twitchings of the ventricles instead of normal contractions, resulting in a loss of pulse and blood pressure. Also called v-fib . Pulse – The rhythmical dilation of arteries produced when blood is pumped outward by regular contractions of the heart, especially as palpated at the wrist or in the neck.
Which picture is a-fib and which is v-fib ? 1.) ? 2.) ? v-fib a-fib
An example of the inevitable use of this equipment, which often ends on a happy note.
Automated external defibrillator - ( AED ) is a device that can detect and correct ventricular fibrillation. V-fib is, basically, cardiac arrest. If cardiac arrest occurs, an AED, if available, should be used immediately. If the AED detects v-fib, it provides an electrical shock (defibrillation) that can restore normal heart rhythm. If a person remains in cardiac arrest after an AED is used, help should be called and CPR should be performed.