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NUR 347 ( LATEST 2024 / 2025 ) DYSRHYTHMIAS | LATEST QUESTIONS WITH COMPLETE GRADE A++ ANSWERS $17.99   Add to cart

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NUR 347 ( LATEST 2024 / 2025 ) DYSRHYTHMIAS | LATEST QUESTIONS WITH COMPLETE GRADE A++ ANSWERS

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NUR 347 ( LATEST 2024 / 2025 ) DYSRHYTHMIAS | LATEST QUESTIONS WITH COMPLETE GRADE A++ ANSWERS

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  • October 23, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NUR 347 Dysrhythmias
  • NUR 347 Dysrhythmias
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NUR 347 Dysrhythmias

1. What is depolarization of cardiac cells?
Answer

Contraction



2. What is repolarization in cardiac cells?
Answer

relaxation



3. What is clinical significance?
Answer

it means you need to do a really good evaluation of the patient



4. T or F the patient should be treated and not the rhythm?

Answer

TRUE



5. What are some clinical sx of decreased cardiac output?
Answer

-decreased BP



-Decrease O2 sat

,-dizziness
-syncope
-palpitations
-cold and clammy skin
-diaphoresis
-pallor
-restlessness
-weakness
-fatigue
-chest or arm pain, numbness or tingling of arms
-feeling of impending doom


6. What is the pathway of impulse transmission in the heart?

Answer

SA>AV>bundle of his> down bundle of branches and out purkinje fibers



7. What do dysrhythmias result from?

Answer

disorders of impulse formation, conduc- tion of impulses, or both.



8. What is the fxn of the SA node?

Answer

pace maker



9. What is the intrinsic HR of the SA node?

Answer

60-100

,10. If the HR is over 60 this means the origin is most likely in the?
Answer

SA node



11. What is the AV node?
Answer

the back up of the pacemaker



12. What is the intrinsic HR of the AV node?
Answer

40-60



13. What are the ventricles?

Answer

the back up of the back up



14. What is the intrinsic HR of the ventricles?
Answer

20-45, usually not good



15. What does the P wave represent?
Answer

atrial depolarization and correlates with atrial contraction

, 16. What does the PR interval represent?
Answer

atrial depolarization + a delay in the AV junction



17. What does the delay in the PR interval allow?
Answer

allows the atria to contract first



18. What does the QRS represent?
Answer

ventricular depolarization, correlates with ventricular contraction



19. What does the T wave represent?

Answer

ventricular repolarization, correlates with ventricular relaxation



20. What does one small box on a horizontal ECG paper measure as?
Answer

0.04s




21. What does one large box on a horizontal ECG paper measure as?

Answer

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