Abstract
The requirement for disclosure of risks of treatment as part of informed consent came before the Supreme Court of Canada in two 1980 cases. The Court found the duty of disclosure of risks to be based in negligence and not battery. The scope of the duty is not to be determined by medical evidence alone and requires the physician to disclose the nature of the proposed treatment, its gravity, any material risks and any special or unusual risks as well as answering in a reasonable way all specific questions asked by the patient. Whether the patient would have decided differently if all the information were known is an objective test, based on what the reasonable person in the patient's particular circumstance would do.
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Dillon, J.R. Informed consent and the disclosure of risks of treatment: The Supreme Court of Canada Decides. Bioethics Quarterly 3, 156–162 (1981). https://doi.org/10.1007/BF00917039
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DOI: https://doi.org/10.1007/BF00917039