proximate cause

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Related to But for causation: But for test

prox·i·mate cause

the immediate cause that precipitates a condition.

proximate cause

Malpractice 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.