2279 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Pericarditis: PR ... elevation in aVR • PR ... ST elevation: Differential ... - Concurrent PR ... diagnosis #ekg #differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
block 1º - long PR ... successively longer PR ... electrocardiogram #cardiology #differential
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
wave and short PR ... electrocardiogram #differential
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
diffuse STE, diffuse PR ... Interpretation #differential
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... • Prolonged PR ... prolongation of PR ... PR longest before ... PR shorted after
Early Breast Cancer - Management Algorithm
 • Luminal A-like (ER+ and/or PR+, HER2- and low proliferation)
A-like (ER+ and/or PR ... B-like (ER+ and/or PR ... Triple-negative (ER-, PR
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Segment Elevation - Differential ... not in aVL • PR-segment ... Segment #Elevation #differential
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
delta wave, short PR ... msec) 3 Short PR ... interval (PR <
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
Elevation of PR ... depression of PR ... normalization of ST and PR
The Curbsiders #89: Conjunctivitis: Red Eye in Pr-eye-mary Care
#Diagnosis #Management #PrimaryCare #RedEye #Overview #Curbsiders
Conjunctivitis: Red Eye in Pr-eye-mary