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