proximate cause(redirected from But for rule)
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the immediate cause that precipitates a condition.
Farlex Partner Medical Dictionary © Farlex 2012
proximate causeMalpractice An element required to prove negligence; the plaintiff–Pt or Pt's estate must prove that the Pt's injury is reasonably connected to the physician's action, through either the 'but for' test or the 'substantial factor' test. See 'But for' test, Negligence, 'Substantial factor' test.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.