NUR 409 EXAM 2 2025 QUESTIONS AND ANSWERS

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NUR 409 EXAM 2 2025 QUESTIONS AND ANSWERS

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What is "normal pacemaker" of the heart? - ANS The SA node. What 5 questions should you ask yourself when identifying and EKG strip? - ANS 1. Is the rhythm regular or irregular? 2. Is there a p wave present? 3. What is the PR interval? 4. What is the heart rate? 5. Is there a QRS complex? What is the normal P wave length? - ANS 0.06-0.12 seconds What is the normal PR interval? - ANS 0.12-0.20 seconds NUR 409 EXAM 2 2025 QUESTIONS AND ANSWERS 2 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED. What is a the heart rate? - ANS 60-100 bpm What is the normal QRS complex? - ANS 0.08-0.10 seconds Where does a premature junctional contraction (PJC) start? - ANS It starts in the AV node area before next normal sinus impulse reaches the AV node. Is a PJC more or less common than PVC&PAC's? - ANS Less common What are the (three) possible causes of a PJC ? - ANS 1. Digoxin toxicity 2. Heart failure 3. CAD What are the (four) characteristics of a PJC? - ANS 1. P wave may be absent, before or after QRS (it is "displaced") 2. PR interval is less

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NUR 409 EXAM 2 2025 QUESTIONS AND
ANSWERS

What is "normal pacemaker" of the heart? - ANS The SA node.

What 5 questions should you ask yourself when identifying and EKG strip? - ANS 1. Is the

rhythm regular or irregular?

2. Is there a p wave present?

3. What is the PR interval?

4. What is the heart rate?

5. Is there a QRS complex?

What is the normal P wave length? - ANS 0.06-0.12 seconds

What is the normal PR interval? - ANS 0.12-0.20 seconds

1 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.

, What is a the heart rate? - ANS 60-100 bpm

What is the normal QRS complex? - ANS 0.08-0.10 seconds

Where does a premature junctional contraction (PJC) start? - ANS It starts in the AV node

area before next normal sinus impulse reaches the AV node.

Is a PJC more or less common than PVC&PAC's? - ANS Less common

What are the (three) possible causes of a PJC ? - ANS 1. Digoxin toxicity

2. Heart failure

3. CAD

What are the (four) characteristics of a PJC? - ANS 1. P wave may be absent, before or after

QRS (it is "displaced")

2. PR interval is less than 0.12

2 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.

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