Echelon quiz questions and answers with complete solutions

Echelon quiz questions and answers with complete solutions When the sympathetic nerve fibers are stimulated, the heart rate is ____________. elevated Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a bath. q24h What method is used to calculate atrial and ventricular rate for irregular rhythms? 6 second rule T or F: The qrs complex in MCL1 can be negative and still be normal. T A wave form is a movement ______________ the isoelectric line in either a positive or negative direction. away from Lead II is helpful in detecting.... sinus node and atrial arrhythmias What affects preload: volume in the veins, pressure in the arteries or ventricles, or volume of blood in the ventricles? volume in the veins Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? Inferior wall MI What are the best areas to place electrodes? on soft tissue The ekg produces an upright pattern on the paper in response to electrical activity in the heart flowing towards a positive electrode The QT interval represents total ventricular activity What are the AV valves? mitral and tricuspid What part of the EKG reflects the refractory period? The QRS to the peak of the T wave 5 large EKG strip boxes totals how much time? 1 second The PRI is considered abnormal or prolonged if it is >0.20 secs What is the most common cause for an alarm sounding? a loose lead wire When the sympathetic nerve fibers are stimulated, the heart rate is ____________. elevated Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a bath. q24h What method is used to calculate atrial and ventricular rate for irregular rhythms? 6 second rule T or F: The qrs complex in MCL1 can be negative and still be normal. T A wave form is a movement ______________ the isoelectric line in either a positive or negative direction. away from Lead II is helpful in detecting.... sinus node and atrial arrhythmias What affects preload: volume in the veins, pressure in the arteries or ventricles, or volume of blood in the ventricles? volume in the veins Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? Inferior wall MI What are the best areas to place electrodes? on soft tissue The ekg produces an upright pattern on the paper in response to electrical activity in the heart flowing towards a positive electrode The QT interval represents total ventricular activity What are the AV valves? mitral and tricuspid What part of the EKG reflects the refractory period? The QRS to the peak of the T wave 5 large EKG strip boxes totals how much time? 1 second The PRI is considered abnormal or prolonged if it is >0.20 secs What is the most common cause for an alarm sounding? a loose lead wire