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EKG Strips Exam Questions and
Answers
Atrial iiFlutter ii-has iia ii"saw iitooth iior iipicket iifence" iiatrial iipattern ii(no iiP iiwaves, iiF- waves iiin iistead iithat iimay iibe iiin iia iiratio) iibetween iithe iiQRS iicomplexes.
Atrial iiFibrillation-Has ii"chaotic" iiatrial iielectrical iiactivity ii(no iiP iiwaves, iif-waves iiinstead) iiwith iiirregular iiR-R iiintervals.
PJCs iicause iithe iirhythm iito iibe iiirregular. iiThe iiP iiwave iiis iiinverted iiif iiit iican iibe iiseen. iiIt iimay iioccur iibefore, iiduring iior iiafter iithe iiQRS. iiThe iiP iiwave iiwill iinot iibe iiseen iidue iito iiits iilow iivoltage.
Junctional iiRhythm iimay iihave iian iiinverted iior iiabsent iiP iiwave. iiThe iiP iiwave iimay iioccur iibefore, iiduring iior iiafter iithe iiQRS iicomplex. iiThe iirate iifor iithis iirhythm iiis ii40-60 iibpm.
Accelerated iiJunctional iiRhythm iimay iihave iian iiinverted iior iiabsent iiP iiwave. iiThe iiP iiwave iimay iioccur iibefore, iiduring iior iiafter iithe iiQRS iicomplex. iiThe iirate iifor iithis iirhythm iiis ii60-100 iibpm.
Junctional iiTachycardia iiRhythm iimay iihave iian iiinverted iior iiabsent iiP iiwave. iiThe iiP iiwave iimay iioccur iibefore, iiduring iior iiafter iithe iiQRS iicomplex. iiThe iirate iifor iithis iirhythm iiis ii100-180 iibpm
Supraventricular iiTachycardia iipresents iiwith iia ii"normal-narrow" iiappearing iiQRS iicomplex iiand iia iirate iiof iigreater iithan ii 150 iibpm. iiRemember iifor iiheart iirates iiapproaching ii 150 iior iihigher, iiit iiwill iibe iivery iilikely iithat iithe iiP iiwave iiwill iibe iiburied. iiBe iiprepared iito iiincrease iithe iipaper iispeed iifor iithis iirhythm.
First iiDegree iiAV iiBlock, iithe iiPR iiinterval iiis iiconstant iiand iimeasures iigreater iithan ii0.20 iisecond.
T iiwave iiinversion, iior iinegatively iideflected iiT iiwave iiindicates iiischemia iiand iiis iiusually iiseen iiwith iiST iisegment iielevation.
T iiwave iiinversion iiwith iiST iielevation iion iia ii12-lead iiECG iiis iiconsidered iimyocardial iiinjury, iiacute iiinjury iipattern, iior iiacute
Physiologic iiQ iiwave iiis iinormal iiand iithe iiwidth iimeasures iiless iithan ii0.04 iisecond iiand iithe iidepth iimeasures iiless iithan iione-third iiof iithe iiheight iiof iithe iiR iiwave iiin iithat iilead.
Pathologic iiQ iiwave iiindicates iitissue iideath ii(infarction) iiand iiis iidefined iias iimeasuring ii0.04 iisecond iiand/or iigreater iithan iior iiequal iito iione iithird iithe iiheight iiof iithe iiR iiwave iiin iithat iilead iitracing.
Ventricular iiTachycardia iihas iiwide iiand iibizarre iiQRS iicomplexes iiwith iia iiclassic ii"sawtooth" iiappearance, iia iirate iiin iiexcess iiof ii 100 iibpm, iiwith iino iiP iiwave.
Ventricular iifibrillation iiis iithe iiabsence iiof iiorganized iielectrical iiactivity. iiThere iiare iino iiP iiwaves, iiQRS iicomplexes iior iiT iiwaves. iiThe iitracing iihas iia iichaotic iior iidisorganized iiappearance.
Asystole iiis iiabsence iiof iiventricular iiactivity iiand iidepolarization. iiOften iithis iiis iicalled ii"the iistraight iiflat iiline" iiof iirhythms. iiNo iielectrical iiactivity iiis iipresent. iiThis iirhythm iiis iineither iiregular iior iiirregular. iiIt iiis iisimply iiabsent!
Atrial iiPacemaker iiRhythm iiis iiidentified iiby iithe iipresence iiof iia iipacing iispike iiimmediately iiprior iito iithe iiatrial iidepolarization ii(P iiwave)
Ventricular iiPacemaker iiRhythm iiis iiidentified iiby iithe iipresence iiof iia iipacing iispike iiimmediately iiprior iito iithe iiventricular iidepolarization ii(QS iicomplex)
Agonal iiRhythm iihas iian iiabsence iiof iiP iiwaves, iia iiventricular iirate iiof iiless iithan ii 20 iibpm iiand iiwide-bizarre iiQRS iicomplexes
Idioventricular iiRhythm iihas iian iiabsence iiof iiP iiwaves, iislow iiventricular iirate iiof ii 20 iito ii 40 iibpm, iiand iiwide-bizarre iiQRS iicomplexes
Accelerated iiIdioventricular iiRhythm iihas iian iiabsence iiof iiP iiwaves, iia iiventricular iirate iiof ii 40 iito ii 100 iibpm, iiand iiwide-bizarre iiQRS iicomplexes.
Sinus iiDysrhythmia, iithe iiP-P iiand iiR-R iiintervals iiwill iiprogressively iiwiden iithen iinarrow iifollowing iithe iipatient's iibreathing iipattern.
Sinus iiArrest iihas iiregularly iioccurring iiPQRST's iiboth iibefore iiand iiafter iithe iiarrest iiperiod. iiNo iielectrical iiactivity iiduring iithe iiarrest iiperiod. iiRemember iito iireport iifrequency iiand iiduration iiof iiSinus iiArrest!
A iiPremature iiAtrial iiComplex ii(PAC) iiis iia iicomplex iithat iioccurs iisooner iithan iiit iishould iiwith iia iipositively iideflected iiP iiwave. iiRemember iito iianalyze iiand iireport iithe iiunderlying iirhythm iialong iiwith iithe iiPAC.
Wandering iiAtrial iiPacemaker ii(WAP) iihas iiat iileast iithree iidifferent iishaped iiP iiwaves. iithe iirhythm iimay iibe iiregular iior iiirregular. iiRate iiis iitypically iibetween ii60- 100 iibpm
Sinus iiRhythm iiis iithe iionly iirhythm iifor iiwhich iiall iifive iisteps iiare iiwithin iinormal iilimits.
Sinus iiBradycardia, iithe iiheart iirate iiis iiless iithan ii 60 iiand iiall iiother iimeasurements iiare iiwithin iinormal iilimits.
