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CARDIAC DYSRHYTHMIAS ADVANCED QUESTIONS AND CORRECT ANSWERS

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CARDIAC DYSRHYTHMIAS ADVANCED QUESTIONS AND CORRECT ANSWERS

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Cardiac tjtjDysrhythmias
tjtjAdvanced

1. WhatStudy tjtjonline
tjtjis tjtj at
the tjtjtjtjpacemaker tjtjof tjtjthe tjtjheart tjtjnormally?: tjtjSA tjtjNode.
tjtjhttps://quizlet.com/_62mbpz
2. Where tjtjdoes tjtjthe tjtjSA tjtjnode tjtjoriginate?: tjtjUpper tjtjright tjtjatrium.
3. What tjtjis tjtjthe tjtjpathway tjtjof tjtjconduction tjtjin tjtjthe tjtjheart?: tjtjSA tjtjnode tjtj-> tjtjatria tjtj->
tjtjAV tjtjnode

-> tjtjbundle tjtjof tjtjhis tjtj-> tjtjbundle tjtjbranches tjtj-> tjtjpurkinje tjtjfibers tjtj-> tjtjventricles.
4. What tjtjdoes tjtjstimulation tjtjof tjtjthe tjtjvagus tjtjnerve tjtjcause?: tjtjDecreased tjtjfiring tjtjof
tjtjthe tjtjSA tjtjnode tjtjand tjtjslowed tjtjimpulse tjtjconduction tjtjof tjtjthe tjtjAV tjtjnode.

5. What tjtjdoes tjtjstimulation tjtjof tjtjthe tjtjsympathetic tjtjnerves tjtjcause?: tjtjIncreased
tjtjfiring tjtjof tjtjthe tjtjSA tjtjnode tjtjand tjtjincreased tjtjimpulse tjtjthrough tjtjthe tjtjAV tjtjnode, tjtjand

tjtjcardiac tjtjcontractility.

6. What tjtjdoes tjtjthe tjtjP tjtjwave tjtjrepresent?: tjtjTime tjtjfor tjtjthe tjtjpassage tjtjof tjtjthe
tjtjelectrical tjtjimpulse tjtjthrough tjtjthe tjtjatrium tjtjcausing tjtjatrial tjtjdepolarization

tjtj(contraction).

7. What tjtjis tjtjthe tjtjnormal tjtjP tjtjwave tjtjduration?: tjtj0.06 tjtj- tjtj0.12.
8. What tjtjis tjtja tjtjpossible tjtjvariation tjtjcause tjtjof tjtja tjtjP tjtjwave?: tjtjDisturbance tjtjin
tjtjconduction tjtjwithin tjtjthe tjtjatria.

9. What tjtjdoes tjtjthe tjtjPR tjtjinterval tjtjrepresent?: tjtjThe tjtjmeasure tjtjfrom tjtjthe
tjtjbeginning tjtjof tjtjthe tjtjP tjtjwave tjtjto tjtjthe tjtjbeginning tjtjof tjtjthe tjtjQRS tjtjcomplex,

tjtjrepresents tjtjtime tjtjtaken tjtjfor tjtjimpulse

to tjtjspread tjtjthrough tjtjthe tjtjatria, tjtjAV tjtjnode, tjtjand tjtjbundle tjtjof tjtjhis, tjtjthe tjtjbundle
tjtjbranches tjtjand tjtjpurkinje tjtjfibers, tjtjto tjtja tjtjpoint tjtjof tjtjimmediately tjtjpreceding

tjtjventricular tjtjcontraction.

10. What tjtjis tjtjthe tjtjnormal tjtjPR tjtjinterval?: tjtj0.12 tjtj- tjtj0.20.
11. What tjtjis tjtja tjtjpossible tjtjvariation tjtjcause tjtjwith tjtjPR tjtjinterval?: tjtjDisturbance tjtjin
tjtjconduc- tjtjtion tjtjusually tjtjin tjtjthe tjtjAV tjtjnode, tjtjbundle tjtjof tjtjhis, tjtjor tjtjbundle tjtjbranches

tjtjbut tjtjcan tjtjbe tjtjatria tjtjas tjtjwell.

12. What tjtjdoes tjtjthe tjtjQRS tjtjinterval tjtjrepresent?: tjtjMeasure tjtjfrom tjtjbeginning
tjtjto tjtjend tjtjof tjtjQRS tjtjcomplex, tjtjrepresent tjtjtime tjtjtaken tjtjfor tjtjdepolarization

tjtj(contraction) tjtjof tjtjboth tjtjventri- tjtjcles tjtj(systole).

13. What tjtjis tjtjthe tjtjnormal tjtjQRS tjtjinterval?: tjtj<0.12.
14. What tjtjis tjtja tjtjpossible tjtjvariation tjtjcause tjtjwith tjtjthe tjtjQRS tjtjinterval?:
tjtjDisturbance tjtjin tjtjconduction tjtjin tjtjthe tjtjbundle tjtjbranches tjtjor tjtjin tjtjthe tjtjventricles.

15. What tjtjdoes tjtjthe tjtjST tjtjSegment tjtjrepresent?: tjtjMeasure tjtjfrom tjtjthe tjtjS
tjtjwave tjtjof tjtjthe tjtjQRS tjtjcomplex tjtjto tjtjthe tjtjbeginning tjtjof tjtjthe tjtjT tjtjwave; tjtjrepresents

tjtjtime tjtjbetween tjtjventricular tjtjdepolarization tjtjand tjtjrepolarization tjtj(Diastole);

tjtjshould tjtjbe tjtjisoelectric tjtj(flat).

16. What tjtjis tjtjthe tjtjnormal tjtjST tjtjsegment?: tjtj0.12.
17. What tjtjis tjtja tjtjpossible tjtjvariation tjtjcause tjtjwith tjtjthe tjtjST tjtjsegment?:
tjtjDisturbance tjtjusually tjtjcaused tjtjby tjtjischemia, tjtjinjury tjtjor tjtjinfarction.

18. What tjtjdoes tjtjthetjtjT tjtjwave tjtjrepresent?: tjtjRepresents tjtjtime tjtjfor tjtjventricular
1
tjtj/
tjtj9

, Cardiac tjtjDysrhythmias
tjtjAdvanced

tjtjrepolariza- tion, tjtjtjtjshould
Study tjtjonline at tjtjbe tjtjupright.
https://quizlet.com/_62mbpz
19. What tjtjis tjtjthe tjtjnormal tjtjT tjtjwave?: tjtj0.16.
tjtj

20. What tjtjis tjtja tjtjpossible tjtjvariation tjtjcause tjtjfor tjtja tjtjT tjtjwave?: tjtjDisturbance tjtjusually
tjtjcaused tjtjby tjtjelectrolyte tjtjdisturbances; tjtjischemia tjtjor tjtjinfarction.




2
tjtj/
tjtj9

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