36 results
Criteria for LBBB RBBB LAFB LPFB #Diagnosis #EM #IM #Cardiology #EKG #RBBB #LBBB #Criteria #LAFB #LPFB
for LBBB RBBB LAFB ... LPFB #Diagnosis ... LBBB #Criteria #LAFB ... #LPFB #BundleBranchBlock
Right bundle branch block (RBBB) and Left bundle branch block (LBBB) comparison

#Diagnosis #ECG #EKG #RBBB #LBBB
bundle branch block ... bundle branch block ... #Left #Right #BundleBranchBlock
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV block ... Trifascicular block ... - RBBB, LAFB/LPFB ... 1st degree heart block
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
WPW, LVH, LBBB, LAFB ... dextrocardia, normal LPFB ... ) - HiPR: AV block ... Short QT <300-360 ms
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• Third degree block ... Advanced 2nd degree block ... or 3rd degree block ... Tri-fascicular block ... symptoms • RBBB + LaFB
Left Anterior Fascicular Block on EKG
 • Left axis deviation (LAD) (-45 degrees to -90 degrees)
Anterior Fascicular Block ... Visualmedapp #LAFB ... Anterior #Fascicular #Block
Reduction of Anterior Shoulder Dislocation

This young man presented to the ER with a Shoulder Dislocation. He
Interscalene Nerve Block ... #physicalexam #msk
Pudendal Neuralgia
• Pudendal nerve arises from S2-S4 roots and innervates perineal structures
• Nerve is prone to
provide a nerve block ... pudendal nerve block ... Diagnosis #Radiology #MSK
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval ≥ 120 ms ... Interval: • 1° Block ... >200ms • 2° Block ... loss of P • 2° Block ... • 3° Complete Block
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
Bundle Branch Block ... Bundle Branch Block ... with QRS ≥120 ms