RELIAS DYSRHYTHMIA BASIC TESTBANK ANSWERS DYSRHYTHMIA – BASIC A&B (A+ GRADED) 100 % COMPLETE

RELIAS DYSRHYTHMIA BASIC TESTBANK ANSWERS DYSRHYTHMIA – BASIC A&B (A+ GRADED) 100 % COMPLETE
2nd Degree Heart Block (Mobitz II) - ansRare, but more serious
Sudden appearance of a nonconducted P-wave
P-waves are nl, but some aren't followed by a QRS complex
PR & RR intervals are constant
2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until
the P wave is not followed by a QPR
3rd degree heart block - ansno obvious correlation between p and qrs, need pace
maker
Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow)
P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node
slower than faster ventricular pacing than should be
QRS: Wide QRS
Conduction: Ventricular only
Rhythm: Regular
- benign rhythm that is sometimes seen during acute MI or early after reperfusion. -
Rarely sustained, does not progress to vfib, rarely requires treatment
asystole - ansabsence of contractions of the heart
Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from
abnormal conduction in the atria
Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1
block or 3 to 1 block"
Atrial paced rhythm - ansspike before P wave
Bigeminy PVC - ansevery other beat is a PVC
Failure to capture (pacemaker) - ans
failure to sense (pacemaker) - ans
First degree heart block - ansatrioventricular (AV) block in which the atrial electrical
impulses are delayed by a fraction of a second before being conducted to the ventricles
Idioventricular Rhythm - ans<40
*looks like vtach but slow*
- no P waves (from vent foci)
- Wide QRS
(serious, death like rhythm)
- called "dying heart" rhythm...occasional ventric beat b4 death (asystole)
Junctional Rhythm - ans40-60 Regular!
-impulse from AV node w/ retro/antegrade transmission
- P wave often inverted/buried/follow QRS
- slow rate
- narrow QRS (not wide like ventricular)
Junctional Tachycardia - ans>60 bpm (ms. K; 150-250)
- KEY: will be regular (consistent)
- AV junction produces a rapid sequence of QRS-T cycles
- p-wave often inverted/buried/follow QRS
monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a
common shape.
normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in
patients at rest of 60 to 100 beats per minute
Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave
PRI: measures between .12-.20 seconds and can be prolonged; can be different from
other complexes
QRS: <.12 seconds
Premature Junctional Contraction - ansInverted p wave or hidden p wave
PRI<0.12 or none
Normal QRS
premature ventricular contraction (PVC) - ansa ventricular contraction preceding the
normal impulse initiated by the SA node (pacemaker)
PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs
Sinus Arrest/Pause - ans- SA node doesn't fire
- notice absence of P-wave for a complete cycle (a missed cycle)
length of pause ≠ multiple of normal rate (block)
Sinus Arrhythmia - ansAppearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - ans<60
normal sinus rhythm

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