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Patients' Rights

Informed Consent



Simply consenting to treatment is not enough. A patient must give informed consent. In essence, informed consent means that before a doctor can treat or touch a patient, the patient must be given some basic information about what the doctor proposes to do. Informed consent has been called the most important legal doctrine in patients' rights.



State laws and court decisions vary regarding informed consent, but the trend is clearly toward more disclosure rather than less. Informed consent is required not only in life-or-death situations but also in clinic and outpatient settings as well. A healthcare provider must first present information regarding risks, alternatives, and success rates. The information must be presented in language the patient can understand and typically should include the following:

  • A description of the recommended treatment or procedure;
  • A description of the risks and benefits—particularly exploring the risk of serious bodily disability or death;
  • A description of alternative treatments and the risks and benefits of alternatives;
  • The probable results if no treatment is undertaken;
  • The probability of success and a definition of what the doctor means by success;
  • Length and challenges of recuperation; and
  • Any other information generally provided to patients in this situation by other qualified physicians.

Only material risks must be disclosed. A material risk is one that might cause a reasonable patient to decide not to undergo a recommended treatment. The magnitude of the risk also factors into the definition of a material risk. For example, one would expect that a one in 10,000 risk of death would always be disclosed, but not a one in 10,000 risk of a two-hour headache.

Plastic surgery and vasectomies illustrate two areas where the probability of success and the meaning of success should be explicitly delineated. For example, a man successfully sued his doctor after the doctor assured him that a vasectomy would be 100 percent effective as BIRTH CONTROL; the man's wife later became pregnant. Because the only purpose for having the procedure was complete sterilization, a careful explanation of probability of success was essential.

Occasionally, informed consent is not required. In an emergency situation where immediate treatment is needed to preserve a patient's health or life, a physician may be justified in failing to provide full and complete information to a patient. Moreover, where the risks are minor and well known to the average person, such as in drawing blood, a physician may dispense with full disclosure. In addition, some patients explicitly ask not to be informed of specific risks. In this situation, a doctor must only ascertain that the patient understands that there are unspecified risks of death and serious bodily disabilities; the doctor might ask the patient to sign a waiver of informed consent.

Finally, informed consent may be bypassed in rare cases in which a physician has objective evidence that informing a patient would render the patient unable to make a rational decision. Under these circumstances, a physician must disclose the information to another person designated by the patient.

Informed consent is rarely legally required to be in writing, but this does provide evidence that consent was in fact obtained. The more specific the consent, the less likely it will be construed against a doctor or a hospital in court. Conversely, blanket consent forms cover almost everything a doctor or hospital might do to a patient without mentioning anything specific and are easily construed against a doctor or hospital. However, blanket forms are frequently used upon admission to a hospital to provide proof of consent to noninvasive routine hospital procedures such as taking blood pressure. A consent form may not contain a clause waiving a patient's right to sue, unless state law provides for binding ARBITRATION upon mutual agreement. Moreover, consent can be predicated upon a certain surgeon doing a surgery. It can also be withdrawn at any time, subject to practical limitations.

Additional topics

Law Library - American Law and Legal InformationFree Legal Encyclopedia: Ordinary resolution to Patients' Rights - ConsentPatients' Rights - Consent, Informed Consent, Right To Treatment, Medical Experimentation, Advance Medical Directives, Right To Die