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Drugs and diseases reference index

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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «R»:

  1. Replacement therapy, testosterone Replacement therapy, testosterone
    Replacement therapy, testosterone: The practice of giving testosterone to treat conditions in which the testes do not produce enough testosterone. This may be due to absence, injury, or disease. Testosterone is available in oral, IV, and patch forms. As with estrogen replacement therapy for wo...
  2. Replacement, total hip Replacement, total hip
    Replacement, total hip: Surgery in which the diseased ball and socket of the hip joint are completely removed and replaced with artificial materials. A metal ball with a stem (a prosthesis) is inserted into the femur (thigh bone) and an artificial plastic cup socket is placed in the acetabulum (a "c...
  3. Replantation Replantation
    Replantation: 1. Literally, the act of planting again. 2. In surgery, the restoration of any part of the body to its original site. Also known as reimplantation. The Chinese surgeon Zhong Wei Chen (1929-2004) was the "father of replantation." Dr. Chen was the first to reattach a severed hand with s...
  4. Replication Replication
    Replication: A turning back, repetition, duplication, reproduction....
  5. Replication, DNA Replication, DNA
    Replication, DNA: A wondrous complex process whereby the ("parent") strands of DNA in the double helix are separated and each one is copied to produce a new ("daughter") strand. This process is said to be "semi-conservative" since one of each parent strand is conserved ...
  6. Reportable disease Reportable disease
    Reportable disease: A disease that must be reported to federal, state, or local health officials when diagnosed. Reportable diseases include active tuberculosis, viral hepatitis, syphilis, gonorrhea, and HIV. Also called a notifiable disease....
  7. Reporting, anonymous Reporting, anonymous
    Reporting, anonymous: In public health, anonymous reporting permits the acquisition of certain data such as the proportion of persons with a positive test or with a disease. It is different from anonymous testing, in which no name is used on the test sample....
  8. Reporting, named Reporting, named
    Reporting, named: In public health, named reporting is the reporting of infected persons by name to public health departments. This is standard practice for the surveillance of many infectious diseases such as syphilis, gonorrhea, and tuberculosis that pose a public health threat. The opposite of n...
  9. Reporting, unique identifier Reporting, unique identifier
    Reporting, unique identifier: In public health, a system that uses information such as the person's birth date and part of their identification number (in the U.S., the social security number) to create a unique code that is reported instead of a name. It is an alternative to named reporting that pr...
  10. Representational oligonucleotide microarray Representational oligonucleotide microarray
    Representational oligonucleotide microarray analysis: See: ROMA....
  11. Reproduction Reproduction
    Reproduction: The production of offspring. Reproduction need not be sexual. Yeast can reproduce by budding....
  12. Reproductive cells Reproductive cells
    Reproductive cells: The eggs and sperm are the reproductive cells. Each mature reproductive cell is haploid in that it has a single set of 23 chromosomes containing half the usual amount of DNA. Except for the eggs and sperm, each cell in the human body -- there are 100 trillion cells in each of...
  13. Reproductive organs, female Reproductive organs, female
    Reproductive organs, female: The internal genital structures of the female include the ovaries, the Fallopian tubes, the uterus (womb) and the vagina. The ovaries or "egg sacs" are a pair of female reproductive organs located in the pelvis, one on each side of the uterus. Each ovary is about the si...
  14. Reproductive system Reproductive system
    Reproductive system: In women, the organs that are directly involved in producing eggs and in conceiving and carrying babies. In men, the organs directly involved in creating, storing, and delivering sperm to fertilize an egg....
  15. Research, clinical Research, clinical
    Research, clinical: A study of a treatment, procedure, or medication done in a medical setting. See also clinical research trials....