ECG Interpretation

ECG Grid

Normal Intervals

P Wave

PR Interval

QRS complex

ST Segment

T Wave

QT Interval

U wave

Determining Rate

Axis

LAD, Causes of

RAD, Causes of

LBBB

LBBB, etiologies of

RBBB

Etiologies of RBBB

LVH

LVH, Causes of

RVH

Causes of RVH

Atrial Enlargement, Left

Atrial Enlargement, Right

Pathologic Q waves

Poor R Wave progression

ST Elevation, Causes

ST depression, Causes

T Wave inversion, Causes

ECG evolution in MI