ELECTROCARDIOGRAM TEST WITH ANSWERS
Pmwavemrepresentsmwhatm-m"ACCURATEmANSWER"mmatrialmdepolarization
QRSmcomplexmrepresentsmwhatm-m"ACCURATEmANSWER"mmventricularmdepolarization
Tmwavemrepresentsmwhatm-m"ACCURATEmANSWER"mmventricularmrepolarization
whatmdoesmthempmwavemprecedem-m"ACCURATEmANSWER"mmThemQRSmcomplex
Smallmsquaresmrepresentm-m"ACCURATEmANSWER"mm.04mseconds
Normalmheartmratemformadultsm-m"ACCURATEmANSWER"mm60-100mbpm
whatmaremheartmratesmabovem100mbpmmcalledm-m"ACCURATEmANSWER"mmtachycardia
whatmaremheartmratesmbelowm60mcalledm-m"ACCURATEmANSWER"mmbradycardia
6msecondmmethodm-
m"ACCURATEmANSWER"mmThemnumbermofmQRSmComplexesmbetweenm6msecmmarksmonmth
emEKGmpapermismmultipliedmbym10.mUsedmgenerallymformestimatingmslowmormirregularmrhy
thms.
them300mmethodm-
m"ACCURATEmANSWER"mmLessmaccuratemmethodmtomdeterminemheartmrate.mCountmthemn
umbermofmlargemboxesmbetweenmanymtwompoints.mDividem300mbymthatmnumber.
1500mmethodm-
m"ACCURATEmANSWER"mmCountmnumbermofmsmallmsquaresmbetweenmtwomconsecutivemR-
wavesmandmdividemthatmnumbermbym1500,mitmismthemmostmaccuratemmethodmofmobtainin
gmthemheartmratembutmcanmonlymbemusedmonmregularmrhythms.
NormalmPmwavem-m"ACCURATEmANSWER"mmNommoremthanm0.10secmlongm
Nommoremthanm2.5mmminmheight
abnormalmpmwavesmaremcalledm-m"ACCURATEmANSWER"mmpmprimemwaves
sinusmdysrhythmiam-
m"ACCURATEmANSWER"mmThemSAmnodemfiresmatmvariousmspeeds.mThemPmwave,mPrminter
val,mandmQRSmcomplexmaremnormal.mThempulsemismusuallymnormalmatm60-
100mBPM.mThemonlymabnormalitymismirregularmP-
Pmintervals.mTheremmustmbem0.12mormmoremdifferenceminmthemlongestmandmshortestmP-
Pmintervalsmformamdiagnosis.
AtrialmDysrhythmiasm-
m"ACCURATEmANSWER"mmabnormalmelectricalmactivitymthatmresultsminmstimulationmoutside
mthemSAmnodembutmwithinmthematria
ventriclemtachycardiam-
m"ACCURATEmANSWER"mmrapid,mregularmheartbeatmasmhighmasm200mbeats/min
AtrialmFlutterm-
m"ACCURATEmANSWER"mmirregularmbeatingmofmthematria;moftenmdescribedmasm"a-
fluttermwithm2mtom1mblockmorm3mtom1mblock"
Pmwavemrepresentsmwhatm-m"ACCURATEmANSWER"mmatrialmdepolarization
QRSmcomplexmrepresentsmwhatm-m"ACCURATEmANSWER"mmventricularmdepolarization
Tmwavemrepresentsmwhatm-m"ACCURATEmANSWER"mmventricularmrepolarization
whatmdoesmthempmwavemprecedem-m"ACCURATEmANSWER"mmThemQRSmcomplex
Smallmsquaresmrepresentm-m"ACCURATEmANSWER"mm.04mseconds
Normalmheartmratemformadultsm-m"ACCURATEmANSWER"mm60-100mbpm
whatmaremheartmratesmabovem100mbpmmcalledm-m"ACCURATEmANSWER"mmtachycardia
whatmaremheartmratesmbelowm60mcalledm-m"ACCURATEmANSWER"mmbradycardia
6msecondmmethodm-
m"ACCURATEmANSWER"mmThemnumbermofmQRSmComplexesmbetweenm6msecmmarksmonmth
emEKGmpapermismmultipliedmbym10.mUsedmgenerallymformestimatingmslowmormirregularmrhy
thms.
them300mmethodm-
m"ACCURATEmANSWER"mmLessmaccuratemmethodmtomdeterminemheartmrate.mCountmthemn
umbermofmlargemboxesmbetweenmanymtwompoints.mDividem300mbymthatmnumber.
1500mmethodm-
m"ACCURATEmANSWER"mmCountmnumbermofmsmallmsquaresmbetweenmtwomconsecutivemR-
wavesmandmdividemthatmnumbermbym1500,mitmismthemmostmaccuratemmethodmofmobtainin
gmthemheartmratembutmcanmonlymbemusedmonmregularmrhythms.
NormalmPmwavem-m"ACCURATEmANSWER"mmNommoremthanm0.10secmlongm
Nommoremthanm2.5mmminmheight
abnormalmpmwavesmaremcalledm-m"ACCURATEmANSWER"mmpmprimemwaves
sinusmdysrhythmiam-
m"ACCURATEmANSWER"mmThemSAmnodemfiresmatmvariousmspeeds.mThemPmwave,mPrminter
val,mandmQRSmcomplexmaremnormal.mThempulsemismusuallymnormalmatm60-
100mBPM.mThemonlymabnormalitymismirregularmP-
Pmintervals.mTheremmustmbem0.12mormmoremdifferenceminmthemlongestmandmshortestmP-
Pmintervalsmformamdiagnosis.
AtrialmDysrhythmiasm-
m"ACCURATEmANSWER"mmabnormalmelectricalmactivitymthatmresultsminmstimulationmoutside
mthemSAmnodembutmwithinmthematria
ventriclemtachycardiam-
m"ACCURATEmANSWER"mmrapid,mregularmheartbeatmasmhighmasm200mbeats/min
AtrialmFlutterm-
m"ACCURATEmANSWER"mmirregularmbeatingmofmthematria;moftenmdescribedmasm"a-
fluttermwithm2mtom1mblockmorm3mtom1mblock"
