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9 Essentials of the AACN - Caring Exam 1 Questions and answers
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9 Essentials of the AACN - Caring Exam 1 Questions and answers
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AACN- Lesson 1, The Anatomy BehindECG Questions and answers with
complete solutions
The Purkinje fibers serve as a backup pacemaker for the heart. What is their normal
rate? - answer20-40bpm
What does the T wave represent? - answerventricular repolarization
The SA node and AV node are found in which chamber of the heart? - answerRight
Atrium (RA)
Which valves are situated between the atria and ventricles? - answerThe mitral and
tricuspid valves
Which part of the ECG rhythm depicts atrial repolarization? - answerIt is not seen
because the QRS activity is larger
Which of the following make up the AV junction? (select 2) - answerBundle of His
AV node
Which of the following is not caused by ventricular contraction? - answerDecreased
pressure within the atria
Atrial depolarization and contraction are represented by the ____________ on the ECG
rhythm. - answerP wave
The __________ is/are the natural pacemaker of the heart, with an intrinsic rate of 60-
100 bpm. - answerSA node
Automaticity is the myocardial cell's ability to do what? - answerGenerate an electrical
impulse if one is not received
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