Disc, slipped: Rupturing of the tissue that separates the vertebral bones of the spinal column.
The center of the disc, which is called the nucleus, is soft, springy and receives the shock of standing, walking, running, etc. The outer ring of the disc, which is called the annulus (Latin for ring), provides structure and strength to the disc. The annulus consists of a complex series of interwoven layers of fibrous tissue that hold the nucleus in place.
A slipped disc is also known as a herniated disc. The term “slipped disc” comes from the action of the nuclear tissue when it is forced from the center of the disc. The nuclear tissue located in the center of the disc can be placed under so much pressure that it can cause the annulus to rupture. When a disc herniates or ruptures, it may create pressure against one or more of the spinal nerves which can cause pain, weakness or numbness in the area of the body served by those nerves. Other names for slipped (herniated) discs are prolapsed and ruptured discs.
Discharge: 1.The flow of fluid from part of the body, such as from the nose or vagina. 2. The passing of an action potential, such as through a nerve or muscle fiber. 3. The release of a patient from a course of care. The doctor may then dictate a discharge summary.
- Discoid lupus
Discoid lupus: A chronic inflammatory condition that is limited to the skin and is caused by an autoimmune disease. Up to 10 percent of persons with discoid lupus eventually develop systemic lupus erythematosus (SLE). Heredity, viruses, ultraviolet light, and drugs may
Discordance: 1. The presence of any given condition such as HIV in only one member of a couple. 2. In genetics, the presence of a phenotype such as asthma in only one members of a twin pair. 3. In clinical care, lack of agreement between physician and patient. In all sense, disconcordance is as opposed […]
Discordant: 1. Showing discordance, lack of agreement. A couple may be discordant for a sexually transmitted infection, with one partner having it and the other not. 2. In transplantation genetics, between different species. A discordant xenograft is a transplant between members of very different species.
- Discordant couple
Discordant couple: A pair of long-term sexual partners in which one has a sexually transmitted infection and the other does not. The CDC has guidelines for counseling discordant couples in which the woman is HIV-infected and her husband is HIV-uninfected.