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Abdominal MRI scan Alcohol and pregnancy Duchenne muscular dystrophy Gastrostomy feeding tube Hemovac drain Heterochromia Hypochromia Ileostomy Laryngectomy Methemoglobinemia Patent urachus repair Polychromatophilia PPD skin test Pregnancy - identifying fertile days RPR test Stool ova and parasites exam Ulcerative colitis - discharge Urethritis Vagina Vasoconstriction


Medical Dictionary Definitions A-Z List

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Medical Dictionary Definitions A - Z - «R»:

  1. Rate, erythrocyte sedimentation Rate, erythrocyte sedimentation
    Rate, erythrocyte sedimentation: A sedimentation rate, or "sed rate", is a blood test that detects and is used to monitor inflammation activity. It is measured by recording the rate at which red blood cells (RBCs) sediment in a tube over time. It increases (the RBCs sediment faster) with more inflam...
  2. Rate, fetal mortality Rate, fetal mortality
    Rate, fetal mortality: The ratio of fetal deaths divided by the sum of the births (the live births + the fetal deaths) in that year. In the United States, the fetal mortality rate plummeted from 19.2 per 1,000 births in 1950 to 9.2 per 1,000 births in 1980. ...
  3. Rate, heart Rate, heart
    Rate, heart: Number of heart beats per minute. The normal resting adult heart beats regularly at an average rate of 60 times per minute. (Young children's hearts beat faster). The speed of the heartbeat (heart rate) is governed by the speed of electrical signals from the pacemaker of the heart, the ...
  4. Rate, infant mortality Rate, infant mortality
    Rate, infant mortality: The number of children dying under a year of age divided by the number of live births that year. The infant mortality rate is also called the infant death rate. The infant mortality rate is an important measure of the well-being of infants, children, and pregnant women becau...
  5. Rate, maternal mortality Rate, maternal mortality
    Rate, maternal mortality: The number of maternal deaths related to childbearing divided by the number of live births (or by the number of live births + fetal deaths) in that year. The maternal mortality rate in the United States in 1993 (and 1994) was 0.1 per 1,000 live births, or 1 mother dying per...
  6. Rate, mortality Rate, mortality
    Rate, mortality: A death rate. There are a number of different types of mortality rates as, for examples, the following: The fetal mortality rate: The ratio of fetal deaths to the sum of the births (the live births + the fetal deaths) in that year. The infant mortality rate: The number of children...
  7. Rate, neonatal mortality Rate, neonatal mortality
    Rate, neonatal mortality: The number of children dying under 28 days of age divided by the number of live births that year. The neonatal mortality rate in the United States, which was 8.4 per 1,000 live births in 1980, declined to 5.8 per 1,000 live births in 1990....
  8. Rate, pulse Rate, pulse
    Rate, pulse: The pulse rate is most often taken at the wrist. It measures the number of pulsations in the radial artery each minute....
  9. Rate, respiratory Rate, respiratory
    Rate, respiratory: See: Respiratory rate....
  10. Rate, sed Rate, sed
    Rate, sed: A sedimentation rate, or "sed rate", is a blood test that detects and is used to monitor inflammation activity. It is measured by recording the rate at which red blood cells (RBCs) sediment in a tube over time. It increases (the RBCs sediment faster) with more inflammation....
  11. Rate, sedimentation Rate, sedimentation
    Rate, sedimentation: A blood test that detects and monitors inflammation in the body. It measures the rate at which red blood cells (RBCs) in a test tube separate from blood serum over time, becoming sediment in the bottom of the test tube. The sedimentation rate increases with more inflammatio...
  12. Rattlesnake bite Rattlesnake bite
    Rattlesnake bite: A poisonous bite by a member of the pit viper family. All rattlesnakes are venomous and secrete poisonous venom. Rattlesnakes are the main cause of death from snake bites in the United States. The emergency treatment of rattlesnake bites is essential. With proper care, rattlesn...
  13. Raw egg Raw egg
    Raw egg: Uncooked, unpasteurized egg. Salmonella enteritidis, a harmful bacterium, can be transmitted from infected hens directly to the interior of their eggs before the shells are formed. Even eggs with clean, uncracked shells can be infected. The CDC (Centers for Disease Control and Prevention) n...
  14. Ray, Roentgen Ray, Roentgen
    Ray, Roentgen: See: Roentgen ray....
  15. Raynaud's disease Raynaud's disease
    Raynaud disease: A condition resulting in skin discoloration of the fingers and/or toes when a person is exposed to changes in temperature (cold or hot) or to emotional events. This condition can occur alone or as a part of another disease (such as rheumatoid arthritis). When the condition occ...
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