Chapter 2 Legal considerations
CONSENT
General principles
A patient has the right under common law to give or withhold consent to medical examination or treatment. The courts have ruled that a mentally competent person has an absolute right to refuse to consent to medical treatment for any reason, rational or irrational, or for no reason at all, even where the decision may lead to the patient’s own death. Until the Mental Capacity Act comes into force in April 2007 (see below), no one else (even next of kin) can consent on behalf of an adult patient (whether competent or not): it is a widely held misconception that a family can consent on behalf of the patient – they can not. The different types of consent are outlined in Box 2.1.
Box 2.1 Types of consent
Implied: Consent not discussed but implied by action. An example is offering arm for venepuncture.
Written: Documentation must be obtained if procedure or treatment carries risks or has side effects.
Informed consent
Patients are entitled to receive sufficient information in the way that they can understand about proposed treatments, possible alternatives and any significant risks (which may be special in kind or magnitude or special to the patient), so that they can make a balanced judgement. Box 2.2 lists the essential features of informed consent.
Box 2.2 Essential for informed consent
Obstetric cases
A woman who is mentally competent to make a treatment decision may choose not to have medical intervention, notwithstanding the risk to her health, and even though the consequences may be the death or serious handicap of the child she bears or her own death. It is the patient’s right to make such a decision and medical staff have no power to override this. Furthermore, in such cases the court does not have jurisdiction to declare medical intervention lawful.
Capacity
Advance directives (also known as living wills)
Advance directives are recognised by English law. They are potentially valid instructions as to which medical treatment that person would or would not be prepared to accept if she should subsequently lose the capacity to decide. However, clinicians are not legally bound to provide treatment if it conflicts with their professional judgement about the most appropriate treatment. Nevertheless the patient’s wishes should be taken into account in deciding the appropriate course of action. An advance directive cannot authorise a doctor to do anything that is illegal. They may express preferences between treatment options or list an individual’s values as a basis for others to reach decisions. They can be in writing or oral.
Treatment without consent
The Mental Capacity Act 2005
Principles relating to capacity
The Mental Capacity Act is underpinned by five key principles: