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Drugs and diseases reference index

Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «R»:

  1. Research, controlled Research, controlled
    Research, controlled: A study that compared results from a treated group and a control group. The control group may receive no treatment, a placebo, or a different treatment. See also blinded study, control group, double-blinded study....
  2. Resect Resect
    Resect: To remove. Resect and excise are not synonymous. Excise implies total removal whereas resect need not. A surgeon may resect part or all of a tumor but if the surgeon excises the tumor, all of the tumor is removed. From the Latin resectus, from resecare, meaning to trim, prune, cut back....
  3. Resectable Resectable
    Resectable: Able to be removed (resected) by surgery....
  4. Resection Resection
    Resection: Surgical removal of part of an organ....
  5. Resection, video-assisted Resection, video-assisted
    Resection, video-assisted: Surgery that is aided by the use of a video camera that projects and enlarges the image on a television screen. Also called video-assisted surgery....
  6. Reservoir Reservoir
    Reservoir: 1. A place where something such as water is kept in reserve. 2. The part of a device in which something is kept in reserve or stored, as an Ommaya reservoir. 3. For an infectious agent, an animal, person, plant, soil, or other substance in which the agent normally abides. See: Reservoir o...
  7. Reservoir of infection Reservoir of infection
    Reservoir of infection: Any person, animal, plant, soil or substance in which an infectious agent normally lives and multiplies. The reservoir typically harbors the infectious agent without injury to itself and serves as a source from which other individuals can be infected. The infectious agent pr...
  8. Reservoir, Ommaya Reservoir, Ommaya
    Reservoir, Ommaya: A device implanted under the scalp that is used to deliver anticancer drugs to the cerebrospinal fluid, the fluid surrounding the brain and spinal cord. The device is named for the U.S. neurosurgeon Ayub Ommaya....
  9. Resident Resident
    Resident: In medicine, a physician who has finished medical school and internship and is now receiving training in a specialized area as, for example, surgery, internal medicine, pathology or radiology. Board certification in all medical and surgical specialties requires the satisfactory completion...
  10. Residual Residual
    Residual: Something left behind. With residual disease, the disease has not been eradicated....
  11. Resin, bile acid Resin, bile acid
    Resin, bile acid: Bile acid resins are substances that bind in the intestines with bile acids that contain cholesterol and are then eliminated in the stool. The major effect of bile acid resins is to lower LDL-cholesterol by about 10 to 20 percent. Small doses of resins can produce useful redu...
  12. Resistance Resistance
    Resistance: Opposition to something, or the ability to withstand it. For example, some forms of staphylococcus are resistant to treatment with antibiotics....
  13. Resistance, antibiotic Resistance, antibiotic
    Resistance, antibiotic: The ability of bacteria and other microorganisms to withstand an antibiotic to which they were once sensitive (and were once stalled or killed outright). Also called drug resistance....
  14. Resistance, aspirin Resistance, aspirin
    Resistance, aspirin: See: Aspirin resistance....
  15. Resistance, insulin Resistance, insulin
    Resistance, insulin: See: Insulin resistance....