standard lead



Any of three standard bipolar limb leads of an electrocardiograph, designated I, II and III. Lead I records potential difference between the right and left arms; lead II, the difference between right arm and left leg; lead III, the difference between left arm and left leg.
A record obtained from such a lead.

Nearby words

  1. standard function,
  2. standard gauge,
  3. standard generalized mark-up language,
  4. standard grade,
  5. standard housing benefit,
  6. standard lining,
  7. standard model,
  8. standard money,
  9. standard normal distribution,
  10. standard of living

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.