EKG rhythms

EKG RHYTHMS QUESTIONS AND VERIFIED SOLUTIONS




NormalrhSinusrhRhythmrh-rhanswers60-100rhbpm

allrhcomplexesrhnormalrhandrhevenlyrhspacedrh(P,rhQRS,rhT)



SinusrhArrestrh-rhanswers-rhSArhnoderhdoesn'trhfire

-rhnoticerhabsencerhofrhP-waverhforrharhcompleterhcyclerh(arhmissedrhcycle)



Sinusrharrhythmiarh-rhanswersallrhcomplexesrhnormalrhbutrhrhythmicallyrhirreg

-
rhnormalrhfindingrh(esprhinrhyoungrhpts)rhthatrhhasrhtorhdorhwithrhbreathingrh(rate:rhi
nhale-increase,rhexhale-decrease)



SinusrhBradycardiarh-rhanswers<60

normalrhsinusrhrhythm



SinusrhTachycardiarh-rhanswers>100rh(100-150)

normalrhsinusrhrhythm



Wanderingrhatrialrhpacemakerrh-rhanswersHint:rhtryrhneverrhtorhpickrhthis

-rhimpulserhoriginaterhfromrhvaryingrhpointsrhinrhatria

-rhvariationrhinrhPrhwaverhcontour,rhPR-I,rhPP-IrhandrhthusrhRR-I



PrhwaverhvsrhTrhwaverh-rhanswersPrhgenerallyrhsmallerrhthanrhT

, MATrh(multifocalrhatrialrhtachy)rh-rhanswers-
rhimpulserhoriginatesrhatrhdiffrhplacesrhinrhatriarhsorhPrhwavesrhdiffrhandrhintervalsrh
mightrhnotrhberhconsistent

-rhassocrhw/rhsevererhpulmrhdz



AtrialrhFibrillationrh-rhanswersA:rh350-450rh(atriarhquivering)

-rhirreg-irregrhrhythmrh(R-RI=irreg)

**unsure/norhP-waverh(non-distinguishable)**

-rhirregrhrhythmrhBUTrhregrhQRS!

Danger:rhincreaserhtherhriskrhofrhthromboemoblicrheventsrhdon'trhconvertrhunlessrhocc
urringrhlessrhthanrh48rhhrs,rhifrhdon'trhknowrhptrhneedrhtorhberhputrhonrhthrombolyti
cs)



AtrialrhFlutterrh-rhanswersA:rh250-350rh

-rh"sawrhtooth"rhp-waves

-rharhcontinuousrhrapidrhsequencerhofrhatrialrhcomplexesrhfromrharhsinglerhrapid-
firingrhatrialrhfocus

(hint:rhifrhseerh2rhPrhwavesrhandrhQRSrhthinkrhArhFlutter)



JunctionalrhEscaperhbeatsrh-rhanswersretrograderhatrialrhdepolarizationrh

P'rhisrhinverted



Junctionalrhrhythmrh-rhanswers40-60rhRegular!

-impulserhfromrhAVrhnoderhw/rhretro/antegraderhtransmission

-rhPrhwaverhoftenrhinverted/buried/followrhQRS

-rhslowrhrate

-rhnarrowrhQRSrh(notrhwiderhlikerhventricular)



JunctionalrhTachycardiarh-rhanswers>60rhbpmrh(ms.rhK;rh150-250)