Is consent valid if patient is confused?
D003072:Cognition Disorders; D003221:Confusion; D006801:Humans; D007258:Informed Consent; D009741:Nursing Staff, Hospital / Q000706:statistics & numerical data / Q000600:supply & distribution; D009873:Operating Rooms / Q000331:legislation & jurisprudence* / Q000458:organization & administration*; D014481:United States