Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «P»:
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...
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. ...
Prepubertal: Before puberty, the period during which secondary sex characteristics start to develop and the capability for sexual reproduction is attained....
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 ...
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 ...
Presbyacousia: See: Presbycusis....
Presbyacusia: See: Presbycusis....
Presbyacusis: See: 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...
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...
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...
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
Prescription drug: A drug requiring a prescription,
as opposed to an over-the-counter drug, which can be purchased
without one. The word
from the Latin
"praescriptus" compounded from "prae", before +
scribere, to write =
to write before. Histo...
Presentation, breech: Birth in which the buttocks
present before the head....
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....