Week 6 Scholarly Questions and Analytical Thinking

Where do all sinus rhythms originate?
What is the rate for Normal Sinus Rhythm (NSR)? What is the rate for Sinus bradycardia? What is the rate for Sinus tachycardia? What is the rate for Sinus Arrhythmia?
Sinus arrhythmia is common in what populations? (answer: young adult men and women)
More often, sinus arrhythmia is caused by the __________. As inspiration occurs, HR (increases or decreases). With expiration, HR (increases or decreases). (answers: ventilation: As inspiration occurs, HR increases: with expiration HR decreases).
Although a dysfunctional SA node can reflect a number of cardiovascular diseases, collectively when the SA node is not functioning correctly it is referred to as what? (Sick sinus syndrome)
What is the main difference in Sinus bradycardia, NSR and Sinus tachycardia?
Make sure you can LABEL correctly at 12-Lead EKG.

Where will you normally see the calibration markings? What are the 3 types of calibration you may see?

Start practicing all of your sinus rhythms in Chapter 6 of your text.

Discuss in greater detail what you are looking for in a rhythm strip interpretation (rhythm, rate, P waves, PRI and QRS).
Practice your 6 second heart rate estimation for irregular rhythms.
What is another name for autorhythmic? (i.e., pacemaker or intrinsic)
What does ‘foci’ mean? (Class, 'foci' refers to where the depoloarization is originating)
Why do we now specifically identify the junctional foci as opposed to just saying at the AV Node? Answer, the pacemake fibers are a little distal (away) from the terminal aspect of the AV node...we will talk about this with junctional rhythms, so do not expect test questions on this yet.
What is overdrive suppression mean?
Please review all atrial rhythms presented in class.
What is the wandering atrial pacemaker(WAP)? Describe this arrhythmia? What is happening with WAP? How many really DIFFERENT Pwave configurations will the WAP have.

What does ectopic site mean?


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