Notes in 04 Conduction Disorders

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Status	Last Update	Fields
Published	11/16/2023	The U wave on ECG is prominent in {{c1::hypokalemia}} and {{c2::bradycardia}}
Published	11/16/2023	Widened/slurred QRS (delta wave) and ↓ PR interval is suggestive of {{c1::Wolff-Parkinson-White syndrome::arrhythmia}}
Published	11/16/2023	{{c1::1st}} degree AV block is characterized by a PR interval > {{c2::200}} msec on ECG
Published	11/16/2023	{{c1::2nd degree Mobitz type I (Wenckebach)::(aka)}} AV block is characterized by progressive lengthening of the {{c2::PR}} interval until a beat is "…
Published	11/16/2023	{{c1::Torsades de pointes}} is a polymorphic ventricular tachycardia with shifting sinusoidal waveforms on ECG
Published	11/16/2023	A long {{c1::QT interval}} predisposes to torsades de pointes
Published	11/16/2023	Deficiencies of which three cations are associated with torsades de pointes? {{c1::K+, Mg2+, Ca2+}}
Published	11/16/2023	Wolff-Parkinson-White syndrome may result in a re-entry circuit, causing supraventricular {{c1::tachycardia}}
Published	11/16/2023	Atrial fibrillation is characterized by a(n) {{c1::irregularly}}, {{c1::irregular}} patterned rhythm
Published	11/16/2023	Atrial {{c2::flutter}} typically has a 2:1 or 4:1 "{{c1::sawtooth}}" pattern appearance on ECG
Published	11/16/2023	{{c1::Ventricular fibrillation}} is characterized by a completely erratic rhythm with no identifiable waves on ECG
Published	11/16/2023	What pathology is indicated on the ECG below? {{c1::Atrial fibrillation}}
Published	11/16/2023	What pathology is indicated on the ECG below? {{c1::Atrial flutter}}
Published	11/16/2023	What pathology is indicated on the ECG below? {{c1::Ventricular fibrillation}}
Published	11/16/2023	Adenosine may cause transient high grade {{c1::heart block}} due to direct AV node inhibition
Published	11/16/2023	Sleep apnea is associated with arrhythmias, especially {{c1::atrial fibrillation}} or {{c1::atrial flutter}}
Published	11/16/2023	What is the likely diagnosis in an elderly patient with fatigue, dizziness, and the ECG findings below?{{c1::Sinus bradycardia}}
Published	11/16/2023	What is the initial treatment for a hemodynamically stable patient with atrial fibrillation with rapid ventricular response?{{c1::Rate control (e.g. β…
Published	11/16/2023	Atrial {{c1::flutter}} is most often caused by a re-entrant current that rotates around the {{c2::tricuspid annulus}}
Published	11/16/2023	Abnormal P wave morphology and tachycardia = {{c1::ectopic atrial tachycardia::arrhythmia}}
Published	11/16/2023	Multifocal atrial tachycardia requires at least {{c1::three}} different P-wave morphologies to diagnose
Published	11/16/2023	What type of AV block involves completely regular RR intervals with dissociated P and QRS complexes?{{c1::3rd degree AV block}}
Published	11/16/2023	What is the best first step in treating acute atrial fibrillation in a hemodynamically unstable patient?{{c1::Synchronized cardioversion (shock)}}
Published	11/16/2023	Stable supraventricular tachycardia (e.g. AVNRT) is managed with vagal maneuvers or {{c1::adenosine}}Unstable supraventricular tachycardia (e.g. AVNRT…
Published	11/16/2023	Narrow QRS, HR > 150, and no regular P waves ± retrograde P waves is suggestive of {{c1::supraventricular tachycardia::diagnosis}}
Published	11/16/2023	Cardioversion in atrial fibrillation > 48 hours requires {{c1::echo::diagnostic test}} and {{c2::anticoagulation (warfarin or DOAC)::pharm}}
Published	11/16/2023	Multiple P wave morphologies and irregular HR that is associated with lung disease (e.g. COPD) = {{c1::multifocal atrial tachycardia::arrhythmia}}
Published	11/16/2023	What is the first-line therapy for conscious and stable patients with torsades de pointes?{{c1::IV magnesium sulfate}}
Published	11/16/2023	Multifocal atrial tachycardia is managed with {{c1::treating the underlying cause::treatment}}
Published	11/16/2023	MAKE SURE TO REVIEW ECG INTERPRETATION FROM WEEK 4
Status	Last Update	Fields