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Analgesia - absence of normal sense of pain without loss of consciousness.

Analgesic - a drug that relieves pain without causing loss of consciousness, such as an aspirin.

Anesthesia - partial or complete loss of feeling or sensation, with or without loss of consciousness, primarily for the purpose of surgery or other medical procedure. There are three main categories of anesthesia: general, regional, and local anesthetic - a drug that produces anesthesia administered by inhalation (breathing) or intravenously (injection or through an IV).

Anesthesia Care Team - anesthesiologists, CRNAs and working together to administer anesthesia and monitor patient condition during surgery, other medical procedures, or delivery of a baby.

Anesthesiologist - physician specializing in administering analgesia and anesthesia

Anesthesiology- the branch of medicine concerned with reducing or eliminating pain or feeling in patients undergoing surgery, the delivery of a baby, or other medical procedures.

Anesthetist - one who administers an anesthetic. In many parts of the world, and particularly in Britain, this term applies to both nurses and doctors. However, in the USA and Canada, physicians who administer anesthetics are referred to as anesthesiologists.

Certified Registered Nurse Anesthetist (CRNA) - a highly-trained nurse specializing in the administration of anesthetics.

Edotracheal Tube (Breathing Tube) - a tube placed in a patient's windpipe to help the patient breathe; commonly used during general anesthesia.

Epidural Anesthesia - anesthesia produced by injection of a local anesthetic into the peridural space of the spinal cord, frequently used during delivery, for surgeries below the waste, and for post-operative pain management. You can view an interactive tutorial about epidural anesthesia by the Patient Education Institute by clicking here.

General Anesthesia - anesthesia where the patient is rendered unconscious by administration of intravenous and/or inhalation anesthetics for the period of surgery. The patient's major bodily functions are closely monitored by a member of the Anesthesia Care Team. A breathing tube is usually required during general anesthesia. You can view an interactive tutorial about general anesthesia by the Patient Education Institute by clicking here.

Local Anesthesia - anesthesia where a small area is deadened by injection of a local anesthetic.

Narcotic - A drug that produces insensibility or stupor. The term is now generally used to describe a class of drugs, such as morphine, which are addictive analgesics, generally producing hypnosis (sleep), but sometimes excitement.

Regional Anesthesia - anesthesia where an anesthetic is administered by injection to deaden a part of the body such as an arm or leg. The patient remains conscious, though often sedated, throughout the procedure.

Sedation - anesthesia where a drug is given to calm a patient during an otherwise excited, uncomfortable, or anxious period of time. Often administered to patients immediately prior to surgery or during uncomfortable medical procedures.

Sedative - a substance that tends to calm, moderate, or tranquilize nervousness or excitement.