13 results
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Premature Ventricular ... heart disease Causes ... full compensatory pause ... capture of the atria ... arrhythmia • Atrial
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
• Ventricles: Ventricular ... Contractions (PACs ... Contractions (PVC ... ), Ventricular tachycardia ... Differential #Diagnosis #Causes
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Differential Diagnosis Algorithm ... • Monomorphic ventricular ... Differential #Diagnosis #Algorithm ... #Causes #cardiology
The cardiac cycle describes each heart beat, incorporating relaxation and contraction. Phase one describes diastole and
see above that atrial ... are both low but atrial ... blood when the atria ... the aortic valve closes ... Pressures #Phonogram #Electrocardiogram
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Left Shunt • Ventricular ... Defect ** • Atrial ... #Causes #Pulmonary
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
restrictive left ventricular ... compliance), ECG: electrocardiogram ... progression, LA: left atrium ... Dysfunction #Grading #Classification
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Escape Rhythm • Ventricular ... • Premature ventricular ... Differential #Diagnosis #Algorithm ... #causes
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
Causes of Cyanosis ... Differential Diagnosis Algorithm ... Arteriosus • Ventricular ... Arteriosus • Atrial ... #Causes #Peds #
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
P and QRS • Atrial ... rate > Ventricular ... Regular ventricular ... HeartBlocks #Types #Classification ... Diagnosis #EKG #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... (3) Multifocal atrial ... 200ms from longer pause ... Distal AV block - ventricular ... EKG #diagnosis #electrocardiogram