SINUS CITY
This sinus rhythm is regular and under 60 bpm.
What is sinus bradycardia
This rhythm is “irregularly irregular.”
What is atrial fibrillation
This junctional rhythm has a rate of 40–60 bpm.
What is junctional escape rhythm
These early beats are wide, bizarre, and come from the ventricles.
What are PVCs
This block has a prolonged PR interval but no dropped beats.
What is first‑degree heart block
This rhythm is a narrow‑complex tachycardia usually 150–250 bpm.
What is SVT
This rhythm has no pulse, chaotic electrical activity, and requires immediate defibrillation.
What is ventricular fibrillation
This sinus rhythm is regular and over 100 bpm.
What is sinus tachycardia
This rhythm has sawtooth flutter waves.
What is atrial flutter
This junctional rhythm has a rate of 60–100 bpm.
What is accelerated junctional rhythm
This lethal rhythm looks like a chaotic scribble and has no pulse.
What is ventricular fibrillation
This block has progressively longer PR intervals until a beat drops.
What is second‑degree type I (Wenckebach)
This maneuver is the first-line treatment for stable SVT.
What are vagal maneuvers
This rhythm speeds up and slows down with breathing.
What is sinus arrhythmia
These early beats come from the atria and have abnormal P‑waves.
What are PACs
This junctional rhythm has a rate over 100 bpm.
What is junctional tachycardia
This ventricular rhythm is fast, wide, and may or may not have a pulse.
What is ventricular tachycardia
This block has a constant PR interval but randomly dropped beats.
What is second‑degree type II
This medication briefly stops the AV node to reset SVT.
What is adenosine
This sinus rhythm is fast because the body is compensating for things like fever, pain, or dehydration.
What is sinus tachycardia
This rhythm has at least 3 different P‑wave shapes.
What is wandering atrial pacemaker
These rhythms often have inverted, absent, or retrograde P‑waves.
What are junctional rhythms
This rhythm “twists” around the baseline and is treated with magnesium.
What is torsades de pointes
This block has no communication between atria and ventricles.
What is third‑degree heart block
This rhythm is irregularly irregular and may require rate control.
What is atrial fibrillation
This sinus rhythm may require atropine if the patient is symptomatic.
What is sinus bradycardia
This version of AFib has a dangerously fast ventricular response.
What is AFib with RVR
Digoxin toxicity is a classic cause of this junctional rhythm.
What is accelerated junctional rhythm or junctional tachycardia
This smooth, sine‑wave‑like rhythm often precedes V‑fib.
What is ventricular flutter
This block often requires immediate pacing due to risk of deterioration.
What is second‑degree type II or third‑degree block
This rhythm may require synchronized cardioversion if unstable.
What is SVT or AFib with RVR