412 results
Typical (Counterclockwise) and Reverse Typical (Clockwise) Atrial Flutter on EKG
Typical (Counterclockwise) Atrial Flutter
 • Inferior leads:
up, slow down; "negative ... • V1: Broad & negative ... electrocardiogram #cardiology ... #clinical #diagnosis
Dextrocardia on EKG
 • Limb leads look like LA ←→ RA transposition
 • V1 ←→ V2
predominantly negative ... electrocardiogram #cardiology ... #diagnosis #clinical
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
● Positive or negative ... R) or entirely negative ... Positive or negative ... Aberrancy #Comparison #Diagnosis ... #Cardiology
Right Bundle Branch Block (RBBB) - EKG Diagnosis
EKG Criteria:
 • QRS > 0.12 seconds
 • Slurred
Block (RBBB) - EKG Diagnosis ... notched R in V1 UCSD ... Block #RBBB #EKG #Diagnosis ... electrocardiogram #cardiology
Septic Arthritis - Pathogens and Clinical Clues

Staphylococcus aureus 
Streptococcal spp. 
Neisseria gonorrhoeae 
Aerobic/Anaerobic 
Gram-negative bacteria 
Brucellosis
Pathogens and Clinical ... Anaerobic Gram-negative ... #Differential #Diagnosis
R Wave Progression - normal chest lead ECG shows an rS-type complex in lead V1 with
increase in the relative ... #Diagnosis #Cardiology
Focal Takotsubo Cardiomyopathy on Ventriculogram Angiography 

55 year old, severe chest pain after death of close
death of close relative ... , ECG diagnosis ... Ventriculogram #Angiogram #clinical ... #cardiology #cathlab
Vereckie Algorithm - Lead aVR - Ventricular Tachycardia - Telemetry Diagnosis
WCT is VT IF:
 • Initial
Tachycardia - Telemetry Diagnosis ... downstroke of negative ... WCT #VTach #avr #diagnosis ... #cardiology #ekg
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... #differential #diagnosis ... causes #culture #negative ... #CNIE #BCNIE #cardiology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
individual studies Clinical ... diseases, describe clinical ... 100%, then all negative ... proportion of negative ... #calculations #diagnosis