Error in EKG page in worksheet

Discussion in 'Feedback and Suggestions' started by samuel.whiskers, Jun 22, 2014.

  1. samuel.whiskers

    Thread Starter Member

    Mar 17, 2014
    On this page -

    The vertical axis of an EKG is reported to reflect 'heart muscle contraction'. Not really correct - the EKG can only be a measure of electrical activity in the heart - so the vertical axis is always a measure of a potential difference (mV) caused by the movement of ions in the heart muscle.
    This may not reflect heart muscle contraction - not all 'beats' in an EKG will cause the heart muscle to contract, and in a type of cardiac arrest called pulseless electrical activity, the EKG reports a (relatively) normal trace and the heart isn't beating at all.

    Maybe just semantics....

  2. MrChips


    Oct 2, 2009
    Yes, you are correct but most readers wouldn't notice the error.