Basic Dysrhythmia-Relias ACTUAL
QUESTIONS AND CORRECT ANSWERS
normal sinus rhythm - CORRECT ANSWERS heart rhythm originating
in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - CORRECT ANSWERS Appearance is ALMOST
NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - CORRECT ANSWERS <60
normal sinus rhythm
Sinus Tachycardia - CORRECT ANSWERS >100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - CORRECT ANSWERS Heart
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
Sinus Arrest/Pause - CORRECT ANSWERS - 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)
, Atrial Fibrillation (A-Fib) - CORRECT ANSWERS an irregular and
often very fast heart rate originating from abnormal conduction in the atria
Atrial Flutter - CORRECT ANSWERS irregular beating of the atria;
often described as "a-flutter with 2 to 1 block or 3 to 1 block"
Junctional Rhythm - CORRECT ANSWERS 40-60 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 - CORRECT ANSWERS >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
Premature Junctional Contraction - CORRECT ANSWERS Inverted p
wave or hidden p wave
PRI<0.12 or none
Normal QRS
Supraventricular Tachycardia (SVT) - CORRECT ANSWERS an
abnormal heart rhythm arising from aberrant electrical activity in the heart;
originates at or above the AV node
QUESTIONS AND CORRECT ANSWERS
normal sinus rhythm - CORRECT ANSWERS heart rhythm originating
in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - CORRECT ANSWERS Appearance is ALMOST
NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - CORRECT ANSWERS <60
normal sinus rhythm
Sinus Tachycardia - CORRECT ANSWERS >100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - CORRECT ANSWERS Heart
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
Sinus Arrest/Pause - CORRECT ANSWERS - 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)
, Atrial Fibrillation (A-Fib) - CORRECT ANSWERS an irregular and
often very fast heart rate originating from abnormal conduction in the atria
Atrial Flutter - CORRECT ANSWERS irregular beating of the atria;
often described as "a-flutter with 2 to 1 block or 3 to 1 block"
Junctional Rhythm - CORRECT ANSWERS 40-60 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 - CORRECT ANSWERS >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
Premature Junctional Contraction - CORRECT ANSWERS Inverted p
wave or hidden p wave
PRI<0.12 or none
Normal QRS
Supraventricular Tachycardia (SVT) - CORRECT ANSWERS an
abnormal heart rhythm arising from aberrant electrical activity in the heart;
originates at or above the AV node
