EKG basics

• related: Cardiology, bundle branch blocks, ECG samples

EKG leads

• Chest leads aka precordial leads:
• V1-V2: anteroseptal
• V3-V4: anteroapical
• V5-V6: anterolateral
• Limb leads:
• LA: left arm
• RA: right arm
• LL: left leg

Wellens syndrome

• related: Cardiology, ECG samples
• tag: #note

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Significance

• highly specific for critical stenosis of LAD
  • very high risk for anterior wall MI in subsequent days to weeks
  • do not stress test: can cause MI or cardiac arrest

Dx

• biphasic or deeply inverted T in V2-3
• AND recent chest pain that's resolved
• normal or slightly elevated cardiac markers

• E