,Echelon quiz questions and answers 2023/2024 with complete solutions
When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
(ANSWER)elevated
Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a
bath. - (ANSWER)q24h
What method is used to calculate atrial and ventricular rate for irregular rhythms? - (ANSWER)6
second rule
T or F: The qrs complex in MCL1 can be negative and still be normal. - (ANSWER)T
A wave form is a movement ______________ the isoelectric line in either a positive or negative
direction. - (ANSWER)away from
Lead II is helpful in detecting.... - (ANSWER)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? - (ANSWER)volume in the veins
Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? -
(ANSWER)Inferior wall MI
What are the best areas to place electrodes? - (ANSWER)on soft tissue
The ekg produces an upright pattern on the paper in response to electrical activity in the heart flowing
towards a - (ANSWER)positive electrode
The QT interval represents - (ANSWER)total ventricular activity
,What are the AV valves? - (ANSWER)mitral and tricuspid
What part of the EKG reflects the refractory period? - (ANSWER)The QRS to the peak of the T wave
5 large EKG strip boxes totals how much time? - (ANSWER)1 second
The PRI is considered abnormal or prolonged if it is - (ANSWER)>0.20 secs
What is the most common cause for an alarm sounding? - (ANSWER)a loose lead wire
Which lead is the most useful for routine monitoring and monitoring the sinus node? - (ANSWER)Lead
II
Which lead is helpful in monitoring atrial rhythms and hemiblocks? - (ANSWER)Lead I
What is the normal measurement of a QRS complex? - (ANSWER)0.04-0.10
What are EKG artifacts? - (ANSWER)false cardiac waveforms
What is the first step in preparing a pt for an EKG? - (ANSWER)reassuring the pt and maintaining
privacy
What are the factors that impact afterload? - (ANSWER)arterial contractility, pressure, and resistance
What is released when the parasympathetic nerve fibers are stimulated? - (ANSWER)acetylcholine
Which lead is helpful in assessing bundle branch defects and confirming pacemaker wire placement? -
(ANSWER)MCL1
, Normal Sinus rhythm has a HR of - (ANSWER)60-100
Afib, Aflutter, and ____________ are examples of SVT - (ANSWER)junctional tachycardia
What rhythm shows a normal rate, normal QRS and PRI durations, and an absent beat or beats? -
(ANSWER)sinus pause
What wave might not be visible if the pt presents w/ sinus tachycardia? - (ANSWER)t wave
In sinus arrhythmia, which interval remains regular - (ANSWER)PRI
What is the most common type of rhythm in SVT? - (ANSWER)paroxysmal SVT
You would not see a normal _______________ interval on an EKG strip with SVT. - (ANSWER)PR
When you have a regular atrial and ventricular rhythm and a normal QRS and PRI and the atrial and
ventricular rate is between 100-150 bpm, this rhythm would be ID'd as - (ANSWER)sinus tachycardia
What is the appropriate tx for a stable pt with afib and a controlled ventricular response? -
(ANSWER)admin anticoagulants and antiarrhythmics
What is the heart's electrical activity dominated by? - (ANSWER)the sa node
In sinus bradycardia, the atrial and ventricular rate is - (ANSWER)40-60 bpm
A pt is ID'd as having an uncontrolled ventricular rate when aflutter is accompanied by a ventricular
rate ________________ - (ANSWER)>100
What rhythm is initiated by the SA node and transmitted through the atria, AV junction, bundle
branches, and purkinje fibers? - (ANSWER)Sinus
When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
(ANSWER)elevated
Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a
bath. - (ANSWER)q24h
What method is used to calculate atrial and ventricular rate for irregular rhythms? - (ANSWER)6
second rule
T or F: The qrs complex in MCL1 can be negative and still be normal. - (ANSWER)T
A wave form is a movement ______________ the isoelectric line in either a positive or negative
direction. - (ANSWER)away from
Lead II is helpful in detecting.... - (ANSWER)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? - (ANSWER)volume in the veins
Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? -
(ANSWER)Inferior wall MI
What are the best areas to place electrodes? - (ANSWER)on soft tissue
The ekg produces an upright pattern on the paper in response to electrical activity in the heart flowing
towards a - (ANSWER)positive electrode
The QT interval represents - (ANSWER)total ventricular activity
,What are the AV valves? - (ANSWER)mitral and tricuspid
What part of the EKG reflects the refractory period? - (ANSWER)The QRS to the peak of the T wave
5 large EKG strip boxes totals how much time? - (ANSWER)1 second
The PRI is considered abnormal or prolonged if it is - (ANSWER)>0.20 secs
What is the most common cause for an alarm sounding? - (ANSWER)a loose lead wire
Which lead is the most useful for routine monitoring and monitoring the sinus node? - (ANSWER)Lead
II
Which lead is helpful in monitoring atrial rhythms and hemiblocks? - (ANSWER)Lead I
What is the normal measurement of a QRS complex? - (ANSWER)0.04-0.10
What are EKG artifacts? - (ANSWER)false cardiac waveforms
What is the first step in preparing a pt for an EKG? - (ANSWER)reassuring the pt and maintaining
privacy
What are the factors that impact afterload? - (ANSWER)arterial contractility, pressure, and resistance
What is released when the parasympathetic nerve fibers are stimulated? - (ANSWER)acetylcholine
Which lead is helpful in assessing bundle branch defects and confirming pacemaker wire placement? -
(ANSWER)MCL1
, Normal Sinus rhythm has a HR of - (ANSWER)60-100
Afib, Aflutter, and ____________ are examples of SVT - (ANSWER)junctional tachycardia
What rhythm shows a normal rate, normal QRS and PRI durations, and an absent beat or beats? -
(ANSWER)sinus pause
What wave might not be visible if the pt presents w/ sinus tachycardia? - (ANSWER)t wave
In sinus arrhythmia, which interval remains regular - (ANSWER)PRI
What is the most common type of rhythm in SVT? - (ANSWER)paroxysmal SVT
You would not see a normal _______________ interval on an EKG strip with SVT. - (ANSWER)PR
When you have a regular atrial and ventricular rhythm and a normal QRS and PRI and the atrial and
ventricular rate is between 100-150 bpm, this rhythm would be ID'd as - (ANSWER)sinus tachycardia
What is the appropriate tx for a stable pt with afib and a controlled ventricular response? -
(ANSWER)admin anticoagulants and antiarrhythmics
What is the heart's electrical activity dominated by? - (ANSWER)the sa node
In sinus bradycardia, the atrial and ventricular rate is - (ANSWER)40-60 bpm
A pt is ID'd as having an uncontrolled ventricular rate when aflutter is accompanied by a ventricular
rate ________________ - (ANSWER)>100
What rhythm is initiated by the SA node and transmitted through the atria, AV junction, bundle
branches, and purkinje fibers? - (ANSWER)Sinus
