why is it called 12-lead ECG when there are only 10 leads attached to the client?

there are 6 precordial leads and 4 limb leads..6+4=10

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  • 1 decade ago
    Favorite Answer

    Donna has it right, only she didn't explain why it is 12 instead of 10. Although there are only 10 actual leads, there are 12 different pathways being recorded. Some of the leads act doubly, e.g. a to b and a to c. Hope this helps. Good luck and all the best.

  • Anonymous
    1 decade ago

    there is 12 leads u havent counted right

    Source(s): im smart
  • 1 decade ago

    12 leads = lead 1,2,3,AVR, AVL, AVF, V1,V2,V3,V4,V5,V6

    Source(s): RN CCU
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