Dr. Zam owed a duty of care to his patient, Miss Lin, after she consulted with him and followed his recommended seaweed wrap program and drugs. However, Dr. Zam breached this duty by failing to warn Miss Lin of the material risk of developing a severe skin rash, which she then did. Under the reasonable prudent patient test, Dr. Zam would be liable for negligence for not informing Miss Lin of this inherent risk so she could make an informed choice. But under the reasonable prudent doctor test, Dr. Zam would not be liable as he acted in line with accepted medical practices.