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Drugs and diseases reference index

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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «Q»:

  1. Quality adjusted life year (QALY) Quality adjusted life year (QALY)
    Quality adjusted life year (QALY): A year of life adjusted for its quality or its value. A year in perfect health is considered equal to 1.0 QALY. The value of a year in ill health would be discounted. For example, a year bedridden might have a value equal to 0.5 QALY....
  2. Quality of life Quality of life
    Quality of life: An important consideration in medical care, quality of life refers to the patient's ability to enjoy normal life activities. Some medical treatments can seriously impair quality of life without providing appreciable benefit, while others greatly enhance quality of life....
  3. Qualm Qualm
    Qualm: 1. Sickness, disease, pestilence, or death. As in "A thousand slain and not of qualm ystorve [not dead of sickness]" (Chaucer in The Canterbury Tales) 2. A sudden sick feeling. As in "A qualm came over me, a horrid nausea and the most deadly shuddering." (Robert Louis Stevenson in "Dr. Jeky...
  4. Quantitative Quantitative
    Quantitative: Having to do with quantity or with the amount. See also qualitative....
  5. Quaque (on prescription) Quaque (on prescription)
    Quaque (on prescription): If a medicine is to be taken every so- many hours, it is written "q_h"; the "q" standing for the Latin word for once "quaque" and the "h" indicating the number of hours. So, for example, "2 caps q4h" means "Take 2 capsules every 4 hours." However it is written, it is one ...
  6. Quaque die (on prescription) Quaque die (on prescription)
    Quaque die (on prescription): Seen on a prescription, qd (or, written with periods, q.d.) means one a day (from the Latin quaque die). The abbreviation is sometimes written without a period in capital letters as "QD". However it is written, it is one of a number of hallowed abbreviations of Latin...
  7. Quarantine Quarantine
    Quarantine: The period of isolation decreed to control the spread of infectious disease. Before the era of antibiotics, quarantine was one of the few available means for halting the spread of infectious diseases. It is still employed as needed. The list of quarantinable diseases in the US includes c...
  8. Quasi- Quasi-
    Quasi-: Prefix meaning seemingly. As, for example, in quasidominant, seemingly dominant. ...
  9. Quasidiploid Quasidiploid
    Quasidiploid: Describing a cell that seems to have the usual two full sets of 23 chromosomes, but does not. Many malignant cells are quasidiploid. Also called pseudodiploid....
  10. Quasidominant Quasidominant
    Quasidominant: Pattern of inheritance that seems due to a dominant trait but is in fact due to the mating of a person who has a recessive disorder (with two copies of a gene causing the disease) with someone who is an asymptomatic carrier (with one copy of the same gene but no symptoms)....
  11. Quater in die (on prescription) Quater in die (on prescription)
    Quater in die (on prescription): Seen on a prescription, qid (or q.i.d.) means 4 times a day (from the Latin quater in die). The abbreviation qid or q.i.d. is also sometimes written without a period in capital letters as "QID". However it is written, it is one of a number of hallowed a...
  12. Queasy Queasy
    Queasy: A feeling of nausea....
  13. Queensland tick typhus Queensland tick typhus
    Queensland tick typhus: One of the tick-borne rickettsial diseases of the eastern hemisphere. Queensland tick typhus is similar to Rocky Mountain spotted fever, another tick-borne rickettsial disease, but is less severe. The clinical features of Queensland tick typhus include fever, a small ulcer (e...
  14. Quickening Quickening
    Quickening: The moment during pregnancy when the baby is first felt to move....
  15. Quiescence Quiescence
    Quiescence: Inactivity, quietness. In cells, quiescence is the state of not dividing. In neurons (nerve cells), quiescence is the state of not firing. The word comes from the Latin "quiescere", to become quiet. Quiescence suggests a temporary cessation of activity. ...