Echelon quiz Questions and Answers 2022/2023

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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? - A [Show More]

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