Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «R»:
Renal syndrome with hemorrhagic fever
Renal syndrome with hemorrhagic fever:
A number of diseases characterized by an abrupt onset of high fever and chills, headache, cold and cough, and pain in the muscles, joints and abdomen with nausea and vomiting followed by bleeding into the kidney and elsewhere. Known
also as hemorrhagic fever...
Renal transplant: Replacement of a diseased, damaged, or missing kidney with a donor kidney. Also called a kidney transplant.
Patients with end-stage renal failure are candidates for transplantation. A successful transplant frees the patient from dialysis and provides the kidney's other metabolic ...
Small structures in the kidney that filter the blood and produce the urine....
Renal vein thrombosis
Renal vein thrombosis: Blood clot in the major vein that drains blood from the kidney....
Rendu-Osler-Weber syndrome: See: Hereditary hemorrhagic telangiectasia....
rep: 1) Roentgen equivalent physical, a unit of
absorbed radiation approximately equivalent to one roentgen. 2) An
abbreviation for repetition when referring to an exercise maneuver.
3) An abbreviation for representative of sales for a pharmaceutical
or health products company....
Repair, DNA: The body has a series of special enzymes
that repair mutations (changes) in the DNA and restore the DNA to its
The DNA in genes is constantly mutating and being repaired. This
repair process is controlled by special genes. A mutation in a DNA
repair gene can cripple ...
Repair, hernia: Also called a herniorrhaphy, a surgical repair of a hernia. Hernia repair may be done under local or general anesthesia using a conventional incision or a laparoscope.
The alternative term "herniorrhaphy" comes from hernio-, referring to a hernia + the Greek rhaphe, a seam = putting ...
Repair, mismatch: A system within the cell for correcting errors in DNA that works by detecting and replacing bases in the DNA that are wrongly paired (mismatched bases). The system repairs the mismatch.
When there is a mismatch in the DNA, a mismatch correction enzyme goes to that strand of DNA and...
Repeat: In genetics, two or more adjacent copies of an identical pattern of nucleotides in the DNA, as in tandem repeat sequences....
Reperfusion: The restoration of blood flow to an organ
or tissue. After a heart attack, an immediate goal is to quickly open blocked arteries and
reperfuse the heart muscles. Early reperfusion minimizes the extent of heart muscle damage
and preserves the pumping function of the heart. ...
Repetitive DNA: DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed highly repetitive DNA consists of short sequences, 5-100 nucleotides, repeated thousands of times in a single stretch and includes satellite DNA. Another class termed moderately r...
Repetitive stress injury
Repetitive stress injury: A type of injury from recurrent stress, often associated with the heavy use of computers. Stress in this context refers to an injury by overuse or improper use.
One of the best-known repetitive stress injuries is the carpal tunnel syndrome, due to pressure on and irritatio...
Replacement therapy, estrogen (ERT)
Replacement therapy, estrogen (ERT)
or estrogen therapy (ET): a form of therapy with estrogen hormones most
commonly used to treat the symptoms of menopause. It reduces or stops the
short-term changes of menopause such as hot flashes, disturbed sleep, and
vaginal dryness. Estrogen
Replacement therapy, hormone (HRT, HT)
Replacement therapy, hormone (HRT, HT): The combination therapy of estrogen plus a
progestogen. Formerly, hormone replacement therapy
Estrogen therapy (ET) is used to treat the symptoms of
menopause. It reduces
or stops the short-term changes of menopause such as hot flashes, disturbed ...