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
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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
Sinus tachycardia is defined as sinus rhythm at a rate of - ANSWER-100-150 bpm
When atropine is ineffective for sinus bradycardia, what would be your next intervention? - ANSWER-transcutaneous pacing
What is one of the primary concerns for a pt presenting w/ afib? - ANSWER-Controlling the ventricular rate
To be ID'd as accelerated junctional rhythm, the ventricular rate must reach ________________ - ANSWER-60-100 bpm
The criteria for ID'ing a rhythm as SVT includes - ANSWER-a very rapid ventricular rate
a QRS complex within normal limits
What is the one EKG characteristic where normal sinus rhythm differs from sinus arrhythmia? - ANSWER-The distance between the Ps and the Rs
What is the key identifier for a PAC? - ANSWER-an early P wave
From what pacemaker site do junctional rhythms originate? - ANSWER-the AV node
The sudden onset or cessation of an arrhythmia is called - ANSWER-paroxysmal
What are the possible tx options for a stable symptomatic patient with junctional tachycardia? - ANSWER-Admin adenosine, O2, ensure IV access
A PJC would not display which EKG characteristic? - ANSWER-a wide QRS > 0.10 secs
T or F: Any ectopy should be cause for concern in healthy people - ANSWER-F
A way to determine if you are looking at a junctional or atrial rhythm is to look at the ________ wave - ANSWER-P
T or F: PACs need to be counted in the underlying rhythm. - ANSWER-F
What is the name of the rhythm with an atrial rate of 250 bpm , a non measurable PRI, and a ventricular rate of 120 bpm? - ANSWER-Aflutter with uncontrolled ventricular rate
What arrhythmia are you more likely to see in infants, children, the elderly, and patients on mechanical ventilation? - ANSWER-sinus arrhythmia
What med is the first line tx for symptomatic SVT? - ANSWER-adenosine
What would a premature beat that starts in the atria and follows an abnormal pathway through the ventricles be called? - ANSWER-an aberrantly con
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