Flashcards in ECG III: Chamber enlargement Deck (14):
what are three etiologies for atrial enlargement?
mitral / tricuspid disease
what is P mitrale?
LA conduction abnormality
what is P pulmonale?
RA conduction abnormality
what is the morphology of P waves in atrial abnormality?
RAA - tall, peaked, P waves in lead II
LAA - notched P waves in lead II, wide and deep terminal forces in V1
what is the duration of P waves in atrial abnormality?
greater than 0.12 s
which lead is the best for looking at waves and intervals?
what are two general etiologies of ventricular enlargement?
what are the features of the R waves and S waves in RVH?
R wave - tall waves over right precordium
S wave - deep waves over left precordium
what is the morphology of the QRS complex in RVH?
what is the morphology of the ST segment and T wave in RVH? which leads is this seen in?
ST depression with upward convexity
inverted T waves
right precordial leads
a tall peaked P wave in lead II indicates what condition?
what is the duration of QRS in LVH?
CAN be prolonged
what is the amplitude of QRS in LVH?
usually high voltages