63 results
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
retrograde) - AVNRT ... , AVRT, Junctional ... differential #diagnosis #causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Converts - Probably AVnRT ... or AVRT - Observe ... Treat underlying cause ... Treat underlying cause ... management #cardiology #algorithm
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... AFlutter • AVNRT ... /AVRT - Bradyarrhythmia ... Differential #Diagnosis #Algorithm ... #causes
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Tachy-arrhythmias (ventricular rate ... re-entrant tachycardia (AVRT ... re-entrant tachycardia (AVNRT ... Differential #Diagnosis #Causes
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
deflection not AVRT ... /AVNRT. ... Rate > 120, QRS ... Rate rarely >200 ... #wide #narrow #algorithm
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Aflutter • AVNRT ... • AVRT (ie ... Differential #Diagnosis #Algorithm ... #causes
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
A waves during AVNRT ... Physical Exam In AVNRT ... of AVNRT. ... as Typical AVNRT ... Cannon #Awaves #AVNRT
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
• ST vs SVT (AVNRT ... , OAVRT, AFIutter ... Bedside eval of rate ... whether AF is cause ... Tx: Underlying cause
#Abnormal Uterine bleeding. #Late #Bleeding #Pregnancy #Differential #Diagnosis #Algorithm #Causes #Obstetrics #OBGyn
#AUB #Abnormal #Uterine #Bleeding #Mnemonic
#Late #Bleeding ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics ... #OBGyn #AUB #Abnormal ... #Differential #Causes
Causes of Late Bleeding in Pregnancy (2nd & 3rd Trimester) - Differential Diagnosis Algorithm
Bleeding from Os
Causes of Late Bleeding ... Differential Diagnosis Algorithm ... Infection #Late ... #Causes #Obstetrics ... #OBGyn