While some argue that live footage of emergency room treatment is beneficial to the general public, the AMA's Code of Medical Ethics states that such taping is a violation of patient privacy and patient confidentiality.
Physicians can ethically withhold information in situations where full disclosure of a diagnosis or treatment would cause great psychological harm to the patient.
Physicians are obligated to inform patients involved in a clinical trial that there is a chance of receiving a placebo, which can result in a deterioration of a medical condition.