20 results
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... QT via long ST ... #diagnosis #cardiology ... #electrocardiogram ... #differential
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... and a prolonged QT ... waves - Short QT ... waves • Short QT ... #ecg #ekg #electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... : Differential diagnosis ... widened QRS and QTc ... #electrocardiogram ... #diagnosis #ekg
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
Causes of Sudden ... /short QT syndromes ... QT syndrome: Drugs ... Arrest #cardiology #differential ... #diagnosis #causes
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... DANGER - Short QT ... QT: "antis and ... #EKG #diagnosis ... #electrocardiogram
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... prolonged PR and QT ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... Diagnosis by Mechanism ... carcinoma of the lung ... #Diagnosis #Table ... #Causes #Sodium
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
WOBBLER for ECG ... called coved ST elevation ... QT syndrome but ... is also a short QT ... #ECG #Diagnosis
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... AV block 1º - long ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Abscess Differential ... Vasculitis (e.g. ... Abscess #pulmonary #differential