402.7 Legal Cause (Treatment Without Informed Consent) Negligence is a legal cause of [loss] [injury] [or] [damage] if it directly and in natural and continuous sequence produces or contributes to producing such [loss] [injury] [or] [damage] so that it can reasonably be said that, but for the negligence, the [loss] [injury] [or] [damage] would not have occurred. The negligent failure to obtain [informed] consent to a medical treatment or procedure is a legal cause of injury resulting from the treatment or procedure if, as a result of such negligence, the patient was induced to undergo a medical treatment or procedure to which the patient would not reasonably have consented had he been adequately informed.