Echelon Quiz Complete Questions and 100% Correct
Answers 2023/2024 with complete solutions.Graded A+
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
60-100
Afib, Aflutter, and ____________ are examples of SVT
junctional tachycardia
What rhythm shows a normal rate, normal QRS and PRI durations, and an absent beat or beats?
Answers 2023/2024 with complete solutions.Graded A+
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
60-100
Afib, Aflutter, and ____________ are examples of SVT
junctional tachycardia
What rhythm shows a normal rate, normal QRS and PRI durations, and an absent beat or beats?
