EKG FINAL EXAM . ACCURATE LATEST VERSION WITH 150 QUESTIONS WITH CORRECT DETAILED ANSWERS.

EKG FINAL EXAM . ACCURATE LATEST VERSION WITH 150 QUESTIONS WITH CORRECT DETAILED ANSWERS. A branch of the supplies the right atrium and right ventricle with blood -CORRECT- right coronary artery (RCA) Stimulation of parasympathetic nerve fibers typically results in what action? -CORRECT- Slowed conduction through the atrioventricular (AV) node The contribution of blood that is added to the ventricles and results from atrial contraction is called: -CORRECT- atrial kick Semilunar Valves include: -CORRECT- pulmonary valve and aortic valve The left main coronary artery divides into the -CORRECT- LAD and Cx branches cells are specialized cells of the electrical conduction system responsible for the spontaneous generation and conduction of electrical impulses. -CORRECT- Pacemaker The absolute refractory period beings with.... -CORRECT- begins with the onset of the QRS complex and terminates at approximately the apex of the T wave T/F: The QT interval represents the time from initial depolarization of the ventricles to the end of ventricular repolarization -CORRECT- true How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular? -CORRECT- compare P-P intervals Which ECG leads use two distinct electrodes, one of which is positive and the other negative? -CORRECT- leads I, II, and III In sinus arrhythmia, a gradual decreasing of the heart rate is usually associated with? -CORRECT- expiration An ECG rhythm strip shows a ventricular rate of 46 bpm, a regular rhythm, a PR interval of 0.14 second, a QRS duration of 0.06 second, and one upright P wave before each QRS. This rhythm is: -CORRECT- sinus bradycardia SA block is a disorder of , and sinus arrest is a disorder of impulse . -CORRECT- SA block is a disorder of conduction Sinus arrest is a disorder of formation Signs and symptoms experienced during a tachydysrhythmia are usually primarily related to: -CORRECT- decreased ventricular filling time and stroke volume Example that reflects ectopic (latent) pacemaker: -CORRECT- the AV junction and ventricles A wandering atrial pacemaker rhythm with a ventricular rate of 60 to 100 bpm may also be referred to as: -CORRECT- multiform atrial rhythm The most common type of supraventricular tachycardia (SVT) is? -CORRECT- AVNRT-- AV nodal reentrant tachycardia If the onset or end of paroxysmal atrial tachycardia or paroxysmal supraventricular tachycardia (PVST) is not observed on the ECG, the dysrhythmia is called: -CORRECT- SVT paroxysmal means sudden onset Most common sustained dysrhythmia in adults? -CORRECT- AFib T/F: The difference between premature atrial complexes (PACs) and premature junctional complexes (PJCs) in leads II, III and aVF is a PAC typically has a positive P wave before the QRS complex, whereas a P wave may or may not be present in a PJC -CORRECT- true A Wolff-Parkinson-White (WPW) pattern is associated with a: -CORRECT- short PR interval, delta wave, and wide QRS complex What is the main difference between atrial flutter and other atrial dysrhythmias? -CORRECT- Atrial flutter has the saw-tooth or picket-fence appearance of waveforms before the QRS When a junctional rhythm is viewed in lead II, where is the location of the P wave on the ECG if atrial and ventricular depolarization occur simultaneously? -CORRECT- during (within) the QRS complex