Av node rate 40 60 bpm - Study guides, Class notes & Summaries

SHARP EKG Exam Questions And Answers What are the two basic kinds of cardiac cells? - ANS 1. myocardial muscle cells 2. myocardial pacemaker cells What are the 4 primary cell characteristics? - ANS 1. Automaticity 2. Excitability 3. Conductivity 4. Contractility What are the two major ions that affect cardiac function? - ANS 1. sodium 2. potassium What are the primary ions inside the cell? - ANS Potassium What are the primary ions outside the cell? - ANS Sodium D...

EKG STUDY MATERIAL FOR ADVENTHEALTH Exam Questions With Verified Answers 3 pacemakers of the heart - answer1. SA node 2. AV node 3. bundle branch intrinsic rate of SA node - answer60-100 bpm intrinsic rate of AV node - answer40-60 bpm intrinsic rate of bundle branches - answer20-40 bpm electrical pathway through the heart - answer1. normal conduction impulse originates in the *SA Node* 2. impulse travels to *AV Node* causing atrial depolarization (contraction) 3. AV Node slightly del...

what does each small box represent - .04 seconds what does 1 large box (5 small boxes) represent - .20 seconds what do 5 large boxes represent - 1 second primary pacemaker - SA node w/expected firing rat of 60-100 bpm backup pacemaker - AV node w/expected firing rate of 40-60 bpm final pacemaker - ventricles w/expected firing rate less than 40 bpm a normal PR interval is - .12-.20 seconds a normal QRS interval is - < .12 seconds (.04-.11) a normal QT interval is - .36-.44 seconds

Normal Conduction System -ANSWER -SA Node = Primary Pacemaker of the Heart, rate of 60-100 bpm -Internodal Pathways = Pathways connecting SA Node and AV Node -AV Node = Backup pacemaker, rate of 40-60 bpm -Bundle of His = splits nerve fibers down Left & Right Sides, His-Purkinje is conduction system of heart -L & R Bundle Brancehs = lead to left & right of the myocardium -Purkinje Fibers / Network = ends of the muscle, last escape pacemaker sites rate of 14-40 Tele Strip Paper -ANSWER ...

What are the 6 parts of the cardiac conduction cycle? correct answer: -SA node -Internodal pathways -AV node -Bundle of His -R and L bundle branches -Purkinje fibers What is the SA node? correct answer: -Small cluster of cells located in the upper R atrium *-Pacemaker of the heart* What are internodal pathways? correct answer: Impulses sent by the SA node that travel through the atrial muscle fibers via the intra-atrial pathways Allows for simultaneous depolarization and contra...

CCTC NUR 221 UNIT 2: MANAGEMENT OF PATIENTS WITH ALTERATIONS IN FLUID AND GAS TRANSPORT: CARDIOVASCULAR (TEST 2) Exam Questions And Answers (Verified And Updated) 3 layers of the heart - answerepicardium, myocardium, endocardium diastole: - answerperiod of ventricular relaxation resulting in *ventricular filling* Systole: - answerperiod of *ventricular contraction* resulting in ejection of blood from the ventricles into the pulmonary artery and aorta depolarization- - answerExchange of...

CCTC NUR 221 UNIT 2: MANAGEMENT OF PATIENTS WITH ALTERATIONS IN FLUID AND GAS TRANSPORT: CARDIOVASCULAR (TEST 2) Exam Questions And Answers (Verified And Updated) 3 layers of the heart - answerepicardium, myocardium, endocardium diastole: - answerperiod of ventricular relaxation resulting in *ventricular filling* Systole: - answerperiod of *ventricular contraction* resulting in ejection of blood from the ventricles into the pulmonary artery and aorta depolarization- - answerExchange of...

Telemetry (Nursing 3270)Electrical - correct answer ____________ systole / diastole activation, excitation, depolarization recovery, recovery, repolarization mechanical - correct answer ______________ systole / diastole shortening, contraction, emptying lengthening, relaxation, filling Contractility - correct answer Force generated by the contracting myocardium under any given condition shorten and contract forcibly when stimulated by electricity Automaticity - correct an...

why we can have premature beats that arise from the atrium, or pre mature beasts that arise form ventricles, v fib from - ANS excitability ability to receive and respond to stimuli - ANS excitability The ability of the heart to generate and conduct electrical impulses on its own. - ANS automaticity transmit electrical impulse across cell membranes cell to cell - ANS conductivity The strength of contraction of the heart at any given end-diastoli...

cardiac electrophysiology correct answer: study of the electrical properties of the cardiac muscle -electricity flows through the heart in a regular, measured pattern and results in contraction of the cardiac muscle -electrical activity precedes mechanical activity (contraction of the heart) -EKG looks at the electrical activity properties of cardiac cells correct answer: specialized cardiac cells have unique characteristics that allow them to regulate heart rate and rhythm characteri...