25 results
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
Un-stimulated #PQ ... (mV) 0 ECG (lead ... node #AV node #Bundle ... of His Bundle
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... finds the right bundle ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... #premature #atrial
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
pathway between the atria ... ventricle known as the bundle ... QRS interval on EKG ... WPW #Cardiology #ECG ... #EKG #Electrocardiogram
Algorithm for the Evaluation of Regular, Wide-Complex Tachycardia
1. aVR: Is the initial deflection in aVR positive?
Algorithm for the ... Bundle-branch morphology ... Interpretation #ECG ... #EKG #Electrocardiogram
Wolff–Parkinson–White syndrome (WPW) is one of several disorders of the electrical system of the heart that
pathway between the atria ... (known as the bundle ... Cardiology #MedStudent #EKG
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
convert - Possible atrial ... flutter, ectopic atrial ... Control rate (e.g ... Control rate (e.g ... management #cardiology #algorithm
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
below AV node (His bundle ... independently of the atria ... (AV node, His Bundle ... heartblock #cardiology #ecg ... #ekg #diagnosis
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Diagnosis and Workup Algorithm ... Initial workup: • EKG ... , PT. aPTT • Serial ... Pain #Diagnosis #Algorithm
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management Algorithm ... potassium and ECG ... fascicular blocks. bundle ... diagnosis #management #algorithm
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Differential Diagnosis Algorithm ... Osm <100 mOsm/kg ... Osm 100-200 mOsm/kg ... obstruction • Partial ... Differential #Diagnosis #Algorithm