Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others.
A physician, medical practitioner, medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the study, diagnosis, prognosis and treatment of disease, injury, and other physical and mental impairments. Physicians may focus their practice on certain disease categories, types of patients, and methods of treatment—known as specialities—or they may assume responsibility for the provision of continuing and comprehensive medical care to individuals, families, and communities—known as general practice. Medical practice properly requires both a detailed knowledge of the academic disciplines, such as anatomy and physiology, underlying diseases and their treatment—the science of medicine—and also a decent competence in its applied practice—the art or craft of medicine.
Informed consent is a principle in medical ethics and medical law and media studies, that a patient must have sufficient information and understanding before making decisions about their medical care. Pertinent information may include risks and benefits of treatments, alternative treatments, the patient's role in treatment, and their right to refuse treatment. In most systems, healthcare providers have a legal and ethical responsibility to ensure that a patient's consent is informed. This principle applies more broadly than healthcare intervention, for example to conduct research and to disclose a person's medical information.
In the United States, a health maintenance organization (HMO) is a medical insurance group that provides health services for a fixed annual fee. It is an organization that provides or arranges managed care for health insurance, self-funded health care benefit plans, individuals, and other entities, acting as a liaison with health care providers on a prepaid basis. The Health Maintenance Organization Act of 1973 required employers with 25 or more employees to offer federally certified HMO options if the employer offers traditional healthcare options. Unlike traditional indemnity insurance, an HMO covers care rendered by those doctors and other professionals who have agreed by contract to treat patients in accordance with the HMO's guidelines and restrictions in exchange for a steady stream of customers. HMOs cover emergency care regardless of the health care provider's contracted status.
Assisted suicide is suicide undertaken with the aid of another person. The term usually refers to physician-assisted suicide (PAS), which is suicide that is assisted by a physician or another healthcare provider. Once it is determined that the person's situation qualifies under the physician-assisted suicide laws for that location, the physician's assistance is usually limited to writing a prescription for a lethal dose of drugs.
Internal medicine, also known as general internal medicine in Commonwealth nations, is a medical specialty for medical doctors focused on the prevention, diagnosis, and treatment of internal diseases. Medical practitioners of internal medicine are referred to as internists, or physicians in Commonwealth nations. Internists possess specialized skills in managing patients with undifferentiated or multi-system disease processes. They provide care to both hospitalized (inpatient) and ambulatory (outpatient) patients and often contribute significantly to teaching and research. Internists are qualified physicians who have undergone postgraduate training in internal medicine, and should not be confused with "interns”, a term commonly used for a medical doctor who has obtained a medical degree but does not yet have a license to practice medicine unsupervised.
Medical ethics is an applied branch of ethics which analyzes the practice of clinical medicine and related scientific research. Medical ethics is based on a set of values that professionals can refer to in the case of any confusion or conflict. These values include the respect for autonomy, non-maleficence, beneficence, and justice. Such tenets may allow doctors, care providers, and families to create a treatment plan and work towards the same common goal. It is important to note that these four values are not ranked in order of importance or relevance and that they all encompass values pertaining to medical ethics. However, a conflict may arise leading to the need for hierarchy in an ethical system, such that some moral elements overrule others with the purpose of applying the best moral judgement to a difficult medical situation. Medical ethics is particularly relevant in decisions regarding involuntary treatment and involuntary commitment.
Life support comprises the treatments and techniques performed in an emergency in order to support life after the failure of one or more vital organs. Healthcare providers and emergency medical technicians are generally certified to perform basic and advanced life support procedures; however, basic life support is sometimes provided at the scene of an emergency by family members or bystanders before emergency services arrive. In the case of cardiac injuries, cardiopulmonary resuscitation is initiated by bystanders or family members 25% of the time. Basic life support techniques, such as performing CPR on a victim of cardiac arrest, can double or even triple that patient's chance of survival. Other types of basic life support include relief from choking, staunching of bleeding by direct compression and elevation above the heart, first aid, and the use of an automated external defibrillator.
The right to die is a concept based on the opinion that human beings are entitled to end their life or undergo voluntary euthanasia. Possession of this right is often understood that a person with a terminal illness, incurable pain, or without the will to continue living, should be allowed to end their own life, use assisted suicide, or to decline life-prolonging treatment. The question of who, if anyone, may be empowered to make this decision is often the subject of debate.
Professional ethics encompass the personal and corporate standards of behavior expected of professionals.
The American College of Physicians (ACP) is a Philadelphia-based national organization of internists, who specialize in the diagnosis, treatment, and care of adults. With 161,000 members, ACP is the largest medical-specialty organization and second-largest physician group in the United States, after the American Medical Association. Its flagship journal, the Annals of Internal Medicine, is considered one of the five top medical journals in the United States and Britain.
Nursing ethics is a branch of applied ethics that concerns itself with activities in the field of nursing. Nursing ethics shares many principles with medical ethics, such as beneficence, non-maleficence and respect for autonomy. It can be distinguished by its emphasis on relationships, human dignity and collaborative care.
The doctor–patient relationship is a central part of health care and the practice of medicine. A doctor–patient relationship is formed when a doctor attends to a patient's medical needs and is usually through consent. This relationship is built on trust, respect, communication, and a common understanding of both the doctor and patients' sides. The trust aspect of this relationship goes is mutual: the doctor trusts the patient to reveal any information that may be relevant to the case, and in turn, the patient trusts the doctor to respect their privacy and not disclose this information to outside parties.
Non-voluntary euthanasia is euthanasia conducted when the explicit consent of the individual concerned is unavailable, such as when the person is in a persistent vegetative state, or in the case of young children. It contrasts with involuntary euthanasia, when euthanasia is performed against the will of the patient.
How Doctors Think is a book released in March 2007 by Jerome Groopman, the Dina and Raphael Recanati Chair of Medicine at Harvard Medical School, chief of experimental medicine at Beth Israel Deaconess Medical Center in Boston, and staff writer for The New Yorker magazine.
The Semmelweis reflex or "Semmelweis effect" is a metaphor for the reflex-like tendency to reject new evidence or new knowledge because it contradicts established norms, beliefs, or paradigms.
Military medical ethics (MME) is a specialized branch of medical ethics with implications for military ethics. Both are primarily fields of applied ethics, the study of moral values and judgments as they apply to the specific contexts of medicine and military affairs, respectively. MME encompasses the practical application of ethics by military physicians and other healthcare practitioners to dilemmas in military clinical and public health settings in which the patients may be friendly or enemy personnel or in which civilians are affected by military operations.
Prison healthcare is the medical specialty in which healthcare providers care for people in prisons and jails. Prison healthcare is a relatively new specialty that developed alongside the adaption of prisons into modern disciplinary institutions. Enclosed prison populations are particularly vulnerable to infectious diseases, including arthritis, asthma, hypertension, cervical cancer, hepatitis, tuberculosis, AIDS, and HIV, and mental health issues, such as Depression, mania, anxiety, and post-traumatic stress disorder. These conditions link prison healthcare to issues of public health, preventive healthcare, and hygiene. Prisoner dependency on provided healthcare raises unique problems in medical ethics.
Adab al-Tabib is the common title of a historical Arabic book on medical ethics, written by Al-Ruhawi, a 9th-century physician. The title can be roughly translated "Practical Ethics of the Physician". As the name suggests, it focuses on adab, the Islamic concept of etiquette and personal ethics, as it is defined in a medical context. One of the earliest texts on Islamic medical ethics, it has been called the "crowning achievement" of early works concerning adab in medicine.
Medical paternalism is a set of attitudes and practices in medicine in which a physician determines that a patient's wishes or choices should not be honored. These practices were current through the early to mid 20th century, and were characterised by a paternalistic attitude, surrogate decision-making and a lack of respect for patient autonomy. It is almost exclusively undertaken with the intention of benefiting the patient, although this is not always the case. In the past, paternalism was considered an absolute medical necessity, as there was little to no public understanding of medical procedures and practices. However, in recent years, paternalism has become limited and blind faith in doctors' decisions has come to be frowned upon.
