11 results
Right sided ECG leads (V1R-V6R) are positioned in a mirror image fashion to the standard 12-lead
Right sided ECG ... leads (V1R-V6R) ... (RV) infarcts #EM ... Cardiology #RightSided #EKG ... #ALiEM
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
Typical ECG changes ... in other leads ... left heart V5, V6 leads ... inverted #Diagnosis #EM ... IM #Cardiology #EKG
Posterior ECG leads (V7-V9) are applied by moving V4-V6 to under the left scapula.Purpose: To detect
Posterior ECG leads ... lateral wall AMI #EM ... Cardiology #Posterior #EKG ... #Lead #Placement ... #ALiEM
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... ST elevation: Differential ... aVR • Classic EKG ... only looks at aVR lead ... #differential #
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
= Biomarkers + ECG ... diffuse STE, diffuse PR ... #Ischemia #ECG ... #EKG #diagnosis ... Interpretation #differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
different P waves in lead ... block 1º - long PR ... bradyarrhythmia #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
wave and short PR ... dagger Q lat>inf leads ... Syncope #Syndromes #ECG ... #EKG #Checklist ... electrocardiogram #differential
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 ... diagnosis #cardiology #ecg ... #ekg #electrocardiogram
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Neck: “dropping head ... life-threatening Differential ... Miller Fischer and PCB ... Serologic and EMG
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
shock syndrome may lead ... to capillary leak ... polymerase-chain-reaction (PCR ... , and possibly PCR ... Fever #Travel #Differential