Echelon Class Exam Questions And Answers (Verified And Updated)

Echelon Class Exam Questions And Answers (Verified And Updated) Sinus bradycardia - answer-less than 60 beats per minute -P wave in front of every QRS -PR--0.12 to 0.20 -QRS less than 0.12 -if symptomatic--atropine, pacemaker sinus tachycardia - answer-treat underlying cause (fever, pain, etc.) Sinus Arrhythmia - answerirregular with breathing--HR increases with inspiration and decreases with expiration -only treat if hemodynamically compromised--atropine SA block - answer-dropped interval/pause -if hemodynamically compromised--atropine, permanent pacemaker sinus arrest - answer- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) -no treatment if episodes are transient otherwise temporary pacing or atropine Premature Atrial Contraction (PAC) - answerif symptomatic--digitalis, beta blockers, antiarrhythmics atrial flutter - answer-Sawtooth pattern -250 to 350 beats -PRI cant determine** -QRS less than .12 -need to control ventricular rate and convert the rhythm/anticoagulate a fib - answer-no p wave -PRI cant measure**