May 2007EKGs of the Month

James E. Pointer, MD

Medical Director

EKG # 158 yo male with L sided chest pain, cardiac hx

EKG # 243 yo male with long cardiac hx, on Cialis

EKG # 384 yo female on ASA only

EKG # 3

• LEFT BUNDLE BRANCH BLOCK CRITERIA

• QRS > 0.12 Sec.

• Terminal (last part of) direction in QRS complex in Lead V1 is negative—points down (turn signal “down”-left)

• If terminal QRS in V1 goes up and the QRS > .012, > RIGHT BBB!