Comprehensive Dysrhythmia Questions and Answers Bundle

A conduction problem above the level of the bundle branches will largely affect the P wave and PR interval. T or F T The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how strong, is called the relative refractory period. F If the wave of depolarizat...

SA node the major pacemaker of the heart 60-100 inherent rate of the SA node 40-60 inherent rate of the AV node 20-40 inherent rate of the ventricles (purkinjie fibers) systole phase of contraction diastole phase of relaxation p wave what does atrial depolarization show on the ECG?

What are the four chambers of the heart? right atrium, left atrium right ventricle, left ventricle What is the name of the septum that separates the R/L atria? interatrial septum What is the name of the septum that separates the R/L ventricles? interventricular septum Where does the Right ...

What is the normal PR interval for an atrial fibrillation rhythm?Not applicable What is a potential cause of PVCs?Hypokalemia Which ECG finding is present in an idioventricular rhythm?Wide QRS What type of AV block is associated with progressively longer PR intervals and an eventual Â"dro...

You are the nurse working on the telemetry unit and you have finally gotten to sit down to work on some charting. Suddenly the heart monitors at the station start beeping. Patient in room 18 is showing this rhythm on the monitor. The medical team advances together into the room and finds them uncons...

EKG interpretation One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart's electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric current moving through the heart. These signals are transmitted to pr...