Category: S

A device used by swimmers and divers that enables them to breathe underwater. The mask worn is watertight and is connected to a tank of compressed air.  

A device that provides respiratory gases. It is used, for example, by rescue personnel, when they enter hazardous breathing environments.  

Being aware of oneself, especially overly aware of appearance and actions, and thus being ill at ease.  

A conceptual model of nursing, also known as the Self-Care Deficit Theory of Nursing and the Self-Care Deficit Nursing Theory, developed by Dorothea Orem. The person is a self-care agent who has a therapeutic self-care demand made up of universal, developmental, and health deviation self-care requisites. The goal of nursing is to help people to…

Being realistic about oneself and at the same time comfortable with that personal assessment.  

Radioactive L-selenomethionine in which the sulfur atom in the methionine has been replaced by selenium. The compound is used intravenously to investigate methionine metabolism.  

The administration of nonabsorbable antibiotics to reduce the burden of potentially infectious bacteria in the gastrointestinal tract.  

A method of percutaneous introduction of a catheter into a vessel. The vessel is located and a needle is inserted. Once a good blood flow is obtained, a wire is threaded through the needle well into the vessel; the needle is then removed and the catheter threaded over the wire into the vessel. The wire…

An instrument composed of two ureteral catheters for securing urine from each kidney separately.  

A stage in the development of malarial parasites (genus Plasmodium) in which the organism undergoes schizogony,