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
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
