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Drugs and diseases reference index

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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. Preoperative care Preoperative care
    Preoperative care: Care given before surgery when physical and psychological preparations are made for the operation, according to the individual needs of the patient. The preoperative period runs from the time the patient is admitted to the hospital or surgicenter to the time that the surgery begin...
  2. Prepatellar bursitis Prepatellar bursitis
    Prepatellar bursitis: Inflammation of the bursa that is positioned in front of the kneecap (patella). Prepatellar bursitis commonly occurs as a result of repeated trauma to the knee such as from kneeling on hard surfaces in an occupation. Also known as housemaid's knee and roofer's knee. ...
  3. Prepubertal Prepubertal
    Prepubertal: Before puberty, the period during which secondary sex characteristics start to develop and the capability for sexual reproduction is attained....
  4. Prepuce Prepuce
    Prepuce: The fold of skin that covers the head of the penis. Also known as the foreskin. Only about 1 in every 20 boys is born with a retractable foreskin. This reflects the fact that the histologic (tissue) development of the foreskin is usually not complete at birth. The foreskin is thus not ...
  5. Prepuce, inflammation of the Prepuce, inflammation of the
    Prepuce, inflammation of the: Inflammation of the prepuce (the foreskin of the penis) is called posthitis. In the uncircumcised male, posthitis and balanitis (inflammation of the glans, the rounded head of the penis) usually occur together as balanoposthitis: inflammation of both the glans and ...
  6. Presbyacousia Presbyacousia
    Presbyacousia: See: Presbycusis....
  7. Presbyacusia Presbyacusia
    Presbyacusia: See: Presbycusis....
  8. Presbyacusis Presbyacusis
    Presbyacusis: See: Presbycusis....
  9. Presbycusis Presbycusis
    Presbycusis: Age-related hearing loss with gradually progressive inability to hear, especially high frequency sounds. Presbycusis most often occurs in both ears. Because the loss of hearing is so gradual, people with presbycusis may not realize that their hearing is diminishing. They may have troubl...
  10. Presbyopia Presbyopia
    Presbyopia: The loss of the eye's ability to change focus to see near objects. The reasons for this loss of the power of accommodation are not yet fully known. It is conventionally said to be due to the lens becoming less elastic with time. Presbyopia is associated with aging. It occurs in everyone...
  11. Prescription Prescription
    Prescription: A physician's order for the preparation and administration of a drug or device for a patient. A prescription has several parts. They include the superscription or heading with the symbol "R" or "Rx", which stands for the word recipe (meaning, in Latin, to take); the inscription, w...
  12. Prescription abbreviations Prescription abbreviations
    Prescription abbreviations: A prescription, as is well known, is a physician's order for the preparation and administration of a drug or device for a patient. What may be less well known is that a prescription has several parts: The superscription (or heading) with the symbol R or Rx which stand...
  13. Prescription drug Prescription drug
    Prescription drug: A drug requiring a prescription, as opposed to an over-the-counter drug, which can be purchased without one. The word "prescription" comes from the Latin "praescriptus" compounded from "prae", before + scribere, to write = to write before. Histo...
  14. Presentation, breech Presentation, breech
    Presentation, breech: Birth in which the buttocks present before the head....
  15. Presentation, footling Presentation, footling
    Presentation, footling: There are single-footling or double-footling presentations depending upon whether the presenting part of the baby at delivery is just one foot or both feet....