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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 - «Q»:

  1. Qinghaosu Qinghaosu
    Qinghaosu: A Chinese herb (also called sweet wormwood) from which is extracted the antimalarial agent artemisinin....
  2. QRS complex QRS complex
    QRS complex: The deflections in the tracing of the electrocardiogram (ECG or EKG), comprising the Q, R, and S waves, that represent the ventricular activity of the heart (the depolarization of the ventricles)....
  3. QT syndrome, long QT syndrome, long
    QT syndrome, long: An inherited defect in the heart rhythm. In the US alone, it is estimated that 4,000 children and young adults die yearly of the long QT syndrome. It is a common cause of sudden death among school athletes, as well as the cause of many unexplained drownings. The first sign may, un...
  4. Quack Quack
    Quack: 1) A practitioner who suggests the use of substances or devices for the prevention or treatment of disease that are known to be ineffective. 2) A person who pretends to be able to diagnose or heal people, but is unqualified and incompetent....
  5. Quackery Quackery
    Quackery: Deliberate misrepresentation of the ability of a substance or device for the prevention or treatment of disease. We may think that the day of patent medicines is gone but look around you and you will see them still. They appeal to our desire to believe that every disease is curable or at l...
  6. Quadrant Quadrant
    Quadrant: A quarter. For example, the liver is in the right upper quadrant of the abdomen. ...
  7. Quadriceps Quadriceps
    Quadriceps: Although the term "quadriceps" technically may refer to any four-headed muscle, it usually refers to and is synonymous with the quadriceps muscle of the thigh, the large muscle that comes down the femur (the bone of the upper leg), goes over the patella (the kneecap) and anchors into th...
  8. Quadriceps reflex Quadriceps reflex
    Quadriceps reflex: See: Knee jerk....
  9. Quadriceps stretch Quadriceps stretch
    Quadriceps stretch: An exercise to stretch the quadriceps muscle, the large muscle in the front of the thigh. To do this exercise, lie on your left side, on the floor. Your hips should be lined up so that the right one is directly above the left one. Rest your head on a pillow or your left hand....
  10. Quadriparesis Quadriparesis
    Quadriparesis: Weakness of all four limbs, both arms and both legs, as for example from muscular dystrophy. ...
  11. Quadriplegia Quadriplegia
    Quadriplegia: Paralysis of all four limbs, both arms and both legs, as from a high spinal cord accident or stroke. ...
  12. Quadriplegic Quadriplegic
    Quadriplegic: Pertaining to quadriplegia (paralysis of all four limbs -- both arms and both legs), as from a high spinal cord accident....
  13. Qualified health claim Qualified health claim
    Qualified health claim: A claim authorized by the US Food and Drug Administration (FDA) that must be supported by credible scientific evidence regarding a relationship between a substance (specific food or food component) and a disease or health-related condition. Both of these elements -- a subs...
  14. Qualify Qualify
    Qualify: In medicine, to finish training. One of the first women to receive a medical degree (albeit pretending to be a man), James Miranda Barry qualified in medicine at the University of Edinburgh in 1812....
  15. Qualitative Qualitative
    Qualitative: Having to do with quality. In contrast to quantitative (which pertains to quantity, the amount)....