Basic Dysrhythmia-Relias 2024/2025
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normal sinus rhythm - 🧠ANSWER ✔✔heart rhythm originating in the
sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - 🧠ANSWER ✔✔Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - 🧠ANSWER ✔✔<60
normal sinus rhythm
Sinus Tachycardia - 🧠ANSWER ✔✔>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - 🧠ANSWER ✔✔Heart Rate: Depends
on underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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, 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 - 🧠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) - 🧠ANSWER ✔✔an irregular and often very fast
heart rate originating from abnormal conduction in the atria
Atrial Flutter - 🧠ANSWER ✔✔irregular beating of the atria; often described
as "a-flutter with 2 to 1 block or 3 to 1 block"
Junctional Rhythm - 🧠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)
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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PRIVACY STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Verified Answers |
Already Graded A+
normal sinus rhythm - 🧠ANSWER ✔✔heart rhythm originating in the
sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - 🧠ANSWER ✔✔Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - 🧠ANSWER ✔✔<60
normal sinus rhythm
Sinus Tachycardia - 🧠ANSWER ✔✔>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - 🧠ANSWER ✔✔Heart Rate: Depends
on underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
1
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, 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 - 🧠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) - 🧠ANSWER ✔✔an irregular and often very fast
heart rate originating from abnormal conduction in the atria
Atrial Flutter - 🧠ANSWER ✔✔irregular beating of the atria; often described
as "a-flutter with 2 to 1 block or 3 to 1 block"
Junctional Rhythm - 🧠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)
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
