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ECHELON STUDY QUESTIONS
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When the sympathetic nerve fibers are stimulated, the heart rate is ____________. - Accurate Answers✔✔✔ elevated Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a bath. - Accurate Answers✔✔✔ q24h What method is used to calculate atrial and ventricular rate for irregular rhythms? - Accurate Answers✔✔✔ 6 second rule T or F: The qrs complex in MCL1 can be negative and still be normal. - Accurate Answers✔✔✔ T A wave form is a movement ______________ the isoelectric line in either a positive or negative direction. - Accurate Answers✔✔✔ away from Lead II is helpful in detecting.... - Accurate Answers✔✔✔ 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? - Accurate Answers✔✔✔ volume in the veins
Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? - Accurate Answers✔✔✔ Inferior wall MI What are the best areas to place electrodes? - Accurate Answers✔✔✔ on soft tissue The ekg produces an upright pattern on the paper in response to electrical activity in the heart flowing towards a - Accurate Answers✔✔✔ positive electrode The QT interval represents - Accurate Answers✔✔✔ total ventricular activity What are the AV valves? - Accurate Answers✔✔✔ mitral and tricuspid What part of the EKG reflects the refractory period? - Accurate Answers✔✔✔ The QRS to the peak of the T wave 5 large EKG strip boxes totals how much time? - Accurate Answers✔✔✔ 1 second The PRI is considered abnormal or prolonged if it is - Accurate Answers✔✔✔ >0.20 secs What is the most common cause for an alarm sounding? - Accurate Answers✔✔✔ a loose lead wire
Normal Sinus rhythm has a HR of - Accurate Answers✔✔✔ 60- Afib, Aflutter, and ____________ are examples of SVT - Accurate Answers✔✔✔ junctional tachycardia What rhythm shows a normal rate, normal QRS and PRI durations, and an absent beat or beats? - Accurate Answers✔✔✔ sinus pause What wave might not be visible if the pt presents w/ sinus tachycardia? - Accurate Answers✔✔✔ t wave In sinus arrhythmia, which interval remains regular - Accurate Answers✔✔✔ PRI What is the most common type of rhythm in SVT? - Accurate Answers✔✔✔ paroxysmal SVT You would not see a normal _______________ interval on an EKG strip with SVT. - Accurate Answers✔✔✔ 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- bpm, this rhythm would be ID'd as - Accurate Answers✔✔✔ sinus tachycardia
What is the appropriate tx for a stable pt with afib and a controlled ventricular response? - Accurate Answers✔✔✔ admin anticoagulants and antiarrhythmics What is the heart's electrical activity dominated by? - Accurate Answers✔✔✔ the sa node In sinus bradycardia, the atrial and ventricular rate is - Accurate Answers✔✔✔ 40-60 bpm A pt is ID'd as having an uncontrolled ventricular rate when aflutter is accompanied by a ventricular rate ________________ - Accurate Answers✔✔✔ > What rhythm is initiated by the SA node and transmitted through the atria, AV junction, bundle branches, and purkinje fibers? - Accurate Answers✔✔✔ Sinus Sinus tachycardia is defined as sinus rhythm at a rate of - Accurate Answers✔✔✔ 100-150 bpm When atropine is ineffective for sinus bradycardia, what would be your next intervention? - Accurate Answers✔✔✔ transcutaneous pacing What is one of the primary concerns for a pt presenting w/ afib? - Accurate Answers✔✔✔ Controlling the ventricular rate
A PJC would not display which EKG characteristic? - Accurate Answers✔✔✔ a wide QRS > 0.10 secs T or F: Any ectopy should be cause for concern in healthy people - Accurate Answers✔✔✔ F A way to determine if you are looking at a junctional or atrial rhythm is to look at the ________ wave - Accurate Answers✔✔✔ P T or F: PACs need to be counted in the underlying rhythm. - Accurate Answers✔✔✔ 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? - Accurate Answers✔✔✔ Aflutter with uncontrolled ventricular rate What arrhythmia are you more likely to see in infants, children, the elderly, and patients on mechanical ventilation? - Accurate Answers✔✔✔ sinus arrhythmia What med is the first line tx for symptomatic SVT? - Accurate Answers✔✔✔ adenosine What would a premature beat that starts in the atria and follows an abnormal pathway through the ventricles be called? - Accurate Answers✔✔✔ an aberrantly conducted PAC
