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basic arrhythmia
test 5
Question | Answer |
---|---|
electrical impulses discharged from cardiac cells outside the SAN | ectopic |
PVC | premature ventricular contraction |
VPC | ventricular premature contraction |
blood flow during a PVC | stops |
characteristics of a PVC include the QRS complex being | wide and bizarre and different |
characteristics of a PVC usually include the absence of a | P wave |
characteristics of a PVC usually include a T wave in the | opposite direction compared to the QRS complex |
characteristics of a PVC usually include the R to R interval being | doubled |
PVCs with uniform morphology are called | unifocal premature ventricular contractions |
PVCs with different morphology are called | multifocal premature ventricular contractions |
PVC with an R wave that lands on the T wave of the preceding cardiac cycle | R on T phenomenon |
two PVCs in immediate succession | couplet or pair |
three or more PVCs in immediate succession | run |
succession | one after another |
PVC occuring every second cardiac cycle | bigeminy |
PVCs occuring every third cardiac cycle | trigeminy |
PVCs occuring every fourth cardiac cycle | quadrigeminy |
PVCs must be reported immediately if two occur in immediate succession | couplet or pair |
PVC must be reported immediately if three or more PVCs occur in immediate succession | run |
it is important to state the | number of PVCs in the run |
PVCs must be reported immediately if its R wave lands on the T wave of the preceding cardiac cycle | R on T phenomenon |
PVCs must be reported immediately if they have different morphology | multifocal |
PVCs must be reported immediately if there are more than | six per minute |
ventricular tachycardia is a tachyarrhythmia caused by ectopic electrical impulses originating in the | ventricles |
ectopic | displaced |
characteristics of V-tach the distance between R waves is consistent which means the rhythm is | regular |
characteristics of V-tach usually include a heart rate of | 150 - 250 beats per minute |
characteristics of V-tach usually include the absence | P waves |
characteristics of V-tach usually include QRS complexes | greater than 0.12 of a second |
VT with a heart rate less than 150 bpm | slow ventricular tachycardia |
VT with a heart rate greater than 250 bpm | ventricular flutter |
VT must be reported immediately because it can quickly transition to a chaotic life threatening arrhythmia abbreviated VF | ventricular fibrillation |
ventricular fibrilation means the heart is twitching instead of | contracting |
VF causes blood flow | to stop |
VF is a chaotic | life threatening arrhythmia |
VF lasting four to six minutes can cause | brain death |
characteristics of VF usually include the absence of | p waves |
characteristics of VF usually include the absence of | QRS complexes |
characteristics of VF usually include the absence of a | heart rate |
two types of VF include | coarse ventricular fibrillation |
two types of VF | fine ventricular fibrillation |
VF requires immediate implementation of a | code blue |
implementation | put into effect |
idioventricular rhythm is an indication of a sign | dying heart |
agonal rhythm has a heart rate less than | 40 bpm |
AIVR | accelerated idioventricular rhythm |
AIVR heart rate is greater than | `40 bpm |
AIVR has absence of | P waves |
AIVR has complexes greater than | 0.12 of a second |
asystole means an absence of cardiac electrical activity represented by a | straight line |
Asystole | ventricular standstill or flatline |
Asystole means the heart is not | contracting |
Asystole causes blood flow to | stop |
Asystole requires immediate implementation of a | code blue |
code blue | cardiopulmonary arrest |
application of a controlled electric shock to the heart to arrest life threatening arrhythmias | defibrillation or electrical cardioversion |