Echelon quiz questions and answers
2024 Detailed(100% correct)
1. When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
(correct answer) elevated
2. Electrode location sites should be rotated _______________ or when the pt is sweaty or
has had a bath. - (correct answer) q24h
3. What method is used to calculate atrial and ventricular rate for irregular rhythms? -
(correct answer) 6 second rule
4. T or F: The qrs complex in MCL1 can be negative and still be normal. - (correct
answer) T
5. A wave form is a movement ______________ the isoelectric line in either a positive or
negative direction. - (correct answer) away from
6. Lead II is helpful in detecting.... - (correct answer) sinus node and atrial
arrhythmias
7. What affects preload: volume in the veins, pressure in the arteries or ventricles, or
volume of blood in the ventricles? - (correct answer) volume in the veins
8. Along with Lead II, lead III is most helpful in monitoring changes in what part of the
heart? - (correct answer) Inferior wall MI
9. What are the best areas to place electrodes? - (correct answer) on soft tissue
10. The ekg produces an upright pattern on the paper in response to electrical activity in
the heart flowing towards a - (correct answer) positive electrode
11. The QT interval represents - (correct answer) total ventricular activity
12. What are the AV valves? - (correct answer) mitral and tricuspid
13. What part of the EKG reflects the refractory period? - (correct answer) The QRS to
the peak of the T wave
14. 5 large EKG strip boxes totals how much time? - (correct answer) 1 second
15. The PRI is considered abnormal or prolonged if it is - (correct answer) >0.20 secs
16. What is the most common cause for an alarm sounding? - (correct answer) a loose
lead wire
2024 Detailed(100% correct)
1. When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
(correct answer) elevated
2. Electrode location sites should be rotated _______________ or when the pt is sweaty or
has had a bath. - (correct answer) q24h
3. What method is used to calculate atrial and ventricular rate for irregular rhythms? -
(correct answer) 6 second rule
4. T or F: The qrs complex in MCL1 can be negative and still be normal. - (correct
answer) T
5. A wave form is a movement ______________ the isoelectric line in either a positive or
negative direction. - (correct answer) away from
6. Lead II is helpful in detecting.... - (correct answer) sinus node and atrial
arrhythmias
7. What affects preload: volume in the veins, pressure in the arteries or ventricles, or
volume of blood in the ventricles? - (correct answer) volume in the veins
8. Along with Lead II, lead III is most helpful in monitoring changes in what part of the
heart? - (correct answer) Inferior wall MI
9. What are the best areas to place electrodes? - (correct answer) on soft tissue
10. The ekg produces an upright pattern on the paper in response to electrical activity in
the heart flowing towards a - (correct answer) positive electrode
11. The QT interval represents - (correct answer) total ventricular activity
12. What are the AV valves? - (correct answer) mitral and tricuspid
13. What part of the EKG reflects the refractory period? - (correct answer) The QRS to
the peak of the T wave
14. 5 large EKG strip boxes totals how much time? - (correct answer) 1 second
15. The PRI is considered abnormal or prolonged if it is - (correct answer) >0.20 secs
16. What is the most common cause for an alarm sounding? - (correct answer) a loose
lead wire
