6 results
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
AVNRT on Neck Physical ... shown , what’s the diagnosis ... in AVNRT - EMdoc ... #AVNRT #Neck #PhysicalExam ... #JVP #Cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... are enough to diagnose ... excludes other differentials ... #JVP #Cardiology ... #Neck #Frog #Sign
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Atrioventricular dissociation ... it indicates AV dissociation ... activation from SVT (e.g ... #diagnosis #cardiology ... #CVP
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... PCWP • Exam: ↓ JVP ... PCWP • Exam: ↑ JVP ... PCWP • Exam: ↑ JVP ... PCWP • Exam: ↓ JVP
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Diagnosis - Absent ... Atrioventricular dissociation ... - Large cv waves ... Jugular #Waveforms #JVP ... #Differential #
Shock - Diagnosis and Management Summary
 • Hypotension: SBP<90, SBP drop >40, MAP<65 (Normotension, HTN possible
Shock - Diagnosis ... telemetry, 12-Lead EKG ... - Distended neck ... crackles, elevated JVP ... #Diagnosis #Management