see also:

• cardiology
• basics of the ECG
  • ECG - tall T waves
  • ECG - biphasic or inverted T waves
  • an approach to the ECG with ST elevation
  • ECG Diagnosis of AMI
• the adult patient with chest pain in the ED

• if generalised, may be due to:
  • hypokalaemia esp. if U waves present
  • very large chest wall (generalised low voltages)
  • hypothyroidism (generalised low voltages)
  • restrictive cardiomyopathy (generalised low voltages)
  • cardiac tamponade (generalised low voltages)
• if in coronary vessel leads only may be myocardial ischaemia if dynamic
• digoxin effect