NUR 4227 Lecture Notes - Lecture 6: Av Nodal Reentrant Tachycardia, Carotid Sinus, Atrioventricular Node
Document Summary
If not treated rapidly, death will result: treatment* Immediate initiation of cpr and advanced cardiac life support (acls) measures with the use of defibrillation and definitive drug therapy. Sudden cardiac death (scd): death from a cardiac cause, majority of scds result from ventricular dysrhythmias, ventricular tachycardia, ventricular fibrillation. Synchronized cardioversion: choice of therapy for hemodynamically unstable ventricular or supraventricular tachydysrhythmias, synchronized circuit delivers a countershock on the r wave of the qrs complex of the ecg, synchronizer switch must be turned on. Implantable cardioverter-defibrillator (icd): appropriate for patients who, have survived scd, have spontaneous sustained vt, have syncope with inducible ventricular tachycardia/fibrillation during. Eps: are at high risk for future life-threatening dysrhythmias, consists of a lead system placed via subclavian vein to the endocardium, battery-powered pulse generator is implanted subcutaneously. Icd sensing system monitors the hr and rhythm and identifies vt or vf: approximately 25 seconds after detecting vt or vf, icd delivers <25 joules.
