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Mayo ECG course Exam Questions and Answers
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Mayo ECG course Exam Questions and Answers
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Mayo ECG course Exam Questions andAnswers
cardiac iiconduction iisystem
SA iiNode
Intra-Atrial iiPathways
AV iiNode
Bundle iiof iiHIS
Bundle iiBranches
Purkinje iiFibers
Sinoatrial iiNode ii(SA iiNode)
Normal iipacemaker iiof iiheart
Initiates iian iiimpulse
Intrinsic iirate iiof ii60 ii- ii100 iiBPM
Intra-Atrial iiand iiNodal iiPathways
Located iiin iiatrial iitissue iibetween iiSA iiand iiAV iinodes
Conducts iiimpulse iifrom iiSA iinode ii- iiatrial iimusculature ii- iiAV iinode
Anterior, iimiddle iiand iiposterior iitracts
Atrioventricular iiNode ii(AV iiNode)
Delays iiimpulse iifrom iiatria
Allows iifor iiventricular iifilling
Protective iimechanism iiagainst iirapid iisupraventricular iiimpulses
, Junctional iiTissue
Tissue iiin iilower iiAV iinode
Back iiup iipacemaker
Intrinsic iirate iiof ii40 ii- ii60 iiBPM
Bundle iiof iiHis iiand iiRight/Left iiBundle iiBranches
Bundle iiof iiHis iiconnects iiAV iinode iito iiright iiand iileft iibundle iibranches
Right iibundle iicarries iiimpulse iito iiright iiventricle; iileft iibundle iicarries iiimpulse iito
iileft iiventricle
Ventricular iiTissue
Back iiup iipacemaker
Intrinsic iirate iiof ii20 ii- ii40 iiBPM
Purkinje iiSystem
Distal iito iithe iibundle iibranches
Rapidly iiconducts iiimpulses iito iiventricular iisub-endocardial iilayers
Normal iiPR iiInterval iimeasurement
0.12 ii– ii0.20 iiseconds
Normal iiQRS iiComplex iimeasurement
0.04 ii- ii< ii0.12 iiseconds
Normal iiQT iiInterval iimeasurement
< ii0.44 iiseconds
Normal iiST iisegment iimeasurement
Normally iiisoelectric
Ischemia iimeasurement
> ii0.5mm iibelow iibaseline ii(all iileads)
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