Echelon Quiz Questions & Answers(Top 2024/2025 EXAM REVIEW PAPERS / GRADED A+/ 100% Accurate)

Echelon Quiz Questions & Answers 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 Which lead is the most useful for routine monitoring and monitoring the sinus node? - Lead II Which lead is helpful in monitoring atrial rhythms and hemiblocks? - Lead I What is the normal measurement of a QRS complex? - 0.04-0.10 What are EKG artifacts? - false cardiac waveforms What is the first step in preparing a pt for an EKG? - reassuring the pt and maintaining privacy What are the factors that impact afterload? - arterial contractility, pressure, and resistance What is released when the parasympathetic nerve fibers are stimulated? - acetylcholine Which lead is helpful in assessing bundle branch defects and confirming pacemaker wire placement? - MCL1 Normal Sinus rhythm has a HR of - 60-10