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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. Reed-Sternberg cell Reed-Sternberg cell
    Reed-Sternberg cell: A type of cell that appears in patients with Hodgkin's disease. The number of these cells increases as the disease advances....
  2. Referral Referral
    Referral: The recommendation of a medical or paramedical professional. If you get a referral to ophthalmology, for example, you are being sent to the eye doctor. In HMOs and other managed care schemes, a referral is usually necessary to see any practitioner or specialist other than your primary...
  3. Referred pain Referred pain
    Referred pain: Pain felt at a site other than where the cause is situated. An example is the pain from the pancreas, which is felt in the back. Pain in internal organs is often referred to sites distant from them....
  4. Reflex Reflex
    Reflex: A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. ...
  5. Reflex sympathetic dystrophy (RSD) Reflex sympathetic dystrophy (RSD)
    Reflex sympathetic dystrophy (RSD): A condition characterized by diffuse pain, swelling and limitation of movement that follows an injury such as a fracture in an arm or leg, The symptoms are way out of proportion to the injury and may linger long after the injury has healed....
  6. Reflex sympathetic dystrophy syndrome (RSDS) Reflex sympathetic dystrophy syndrome (RSDS)
    Reflex sympathetic dystrophy syndrome (RSDS): RSDS is a condition that features a group of typical symptoms, including pain (often "burning" type), tenderness, and swelling of an extremity associated with varying degrees of sweating, warmth and/or coolness, flushing, discoloration, and sh...
  7. Reflex, Babinski Reflex, Babinski
    Reflex, Babinski: An important neurologic test based, believe it or not, upon what the big toe does when the sole of the foot is stimulated. If the big toe goes up, that may mean trouble. The Babinski reflex is obtained by stimulating the external portion (the outside) of the sole. The examiner ...
  8. Reflex, let down Reflex, let down
    Reflex, let down: The let down reflex of the mother is an involuntary reflex during breastfeeding which causes the milk to flow freely....
  9. Reflex, patellar Reflex, patellar
    Reflex, patellar: See: Knee jerk....
  10. Reflex, patellar tendon Reflex, patellar tendon
    Reflex, patellar tendon: See: Knee jerk....
  11. Reflex, photic sneeze Reflex, photic sneeze
    Reflex, photic sneeze: A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the sudden exposure of a dark-adapted subject to intensely bright light, usually to brilliant sunlight. The number of successive sneezes is usually 2 or 3, but can be up to ...
  12. Reflex, pressor Reflex, pressor
    Reflex, pressor: A pressor reflex is a neurological (nerve) reflex that constricts arterioles (small blood vessels) and thereby increases the blood pressure. "Pressor" refers to raising the blood pressure. The word comes from the French "presser" meaning "to exert pressure" or "to squeeze."...
  13. Reflex, quadriceps Reflex, quadriceps
    Reflex, quadriceps: See: Knee jerk....
  14. Reflux Reflux
    Reflux: The term used when liquid backs up into the esophagus from the stomach....
  15. Reflux disease, gastroesophageal (GERD) Reflux disease, gastroesophageal (GERD)
    Reflux disease, gastroesophageal (GERD): The stomach contents regurgitate and back up (reflux) into the esophagus The food in the stomach is partially digested by stomach acid and enzymes. Normally, the partially digested acid content in the stomach is delivered by the stomach muscle down into th...