14 results
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
pathway between the atria ... QRS interval on EKG ... (Delta wave) 2 ... WPW #Cardiology #ECG ... #EKG #Electrocardiogram
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... conducted with normal ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... #premature #atrial
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
in Right Atrium ... Small secundum ASD ... to right shunt 2. ... #Right #Atrium ... #pocus #bubble
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Atrial flutter ... (3) SVTs - atrial ... (3) Multifocal atrial ... bradyarrhythmia #ECG ... #EKG #diagnosis
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... origin within the atria ... (e.g. ectopic atrial ... • Saw-Tooth = Atrial ... @AmyChung #EKG
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Multifocal Atrial ... Arrhythmias on ECG ... Multifocal atrial ... tachycardia ECG ... cardiology #diagnosis #ekg
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Subepicardial atrial ... aVR • Classic EKG ... : AVNRT, AVRT, atrial ... #diagnosis #ekg
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... : WPW, ectopic atrial ... #Approach #ECG ... #EKG #diagnosis ... #electrocardiogram
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Nonspecific inhibitors e.g ... to one factor e.g ... inhibitory drugs e.g ... Supratherapeutic warfarin effect ... Causes #diagnosis #differential
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Pre-analytical cause (e.g ... filling of tube) 2. ... inhibitory drugs (e.g ... specific inhibitor (e.g ... amyloidosis #Abnormal