3281 results
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
for VT: - No RS ... entirely positive or ... of typical RBBB or ... northwest axis") — QRS ... Capture beats- a QRS
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
- RR only - #QRS ... 2 dots = 3s; #QRS ... (1) Pfor every QRS ... bpm - Axis - QRS ... ), LBBB (V5/V6 rs
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
diagnosing MI in LBBB or ... Identify LBBB or ... Pacemaker LBBB: QRS ... - Fusion: odd QRS ... Narrow, different QRS
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
QRS often wide. ... be no pattern or ... between P and QRS ... 40-60), narrow QRS ... (20-40), wide QRS
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Biomarkers + ECG or ... 1/3 height of QRS ... in 2 leads or 1 ... bigger than QRS ... - proximal LAD or
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
ST segment at (or ... mV (horizontal or ... concave) in V1-V3 (or ... concordant to the QRS ... with discordant QRS
Hepatorenal Syndrome Diagnosis
 • ↑ in serum Cr of ≥ 0.3mg/dL above baseline
- Type 1 HRS ... - Type 2 HRS ... less severe and/or ... urine output and/or ... Syndrome #diagnosis #HRS
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
of typical RBBB or ... dissociation (P and QRS ... colision) ● Positive or ... entirely positive (R) or ... Positive or negative
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Renal Syndromes (PRS ... defining feature, PRS ... gold standard) or ... A: microscopic or ... @MithuRheum #PRS
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Count number of QRS ... getting through) QRS ... wide > 2 mm deep or ... 25% of depth of QRS ... wave (between QRS