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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 - «P»:

  1. Preclinical study Preclinical study
    Preclinical study: A study to test a drug, procedure or other medical treatment in animals. The aim is to collect data in support of safety. Preclinical studies are required before clinical trials can be started....
  2. Precocious Precocious
    Precocious: Unusually early development, whether it be of intellectual powers, speech, physical traits, etc. Precocious puberty is the unusually early development of secondary sexual features. The onset of sexual maturation in a girl before age 8 or a boy before age 9 is usually considered to be pr...
  3. Precocious puberty Precocious puberty
    Precocious puberty: Precocious puberty is the unusually early development of secondary sexual features. The onset of sexual maturation in a girl before age 8 or a boy before age 9 is usually considered to be precocious puberty....
  4. Preconceptual counselling Preconceptual counselling
    Preconceptual counselling: The interchange of information prior to pregnancy. Usually for pregnancy planning and care, but sometimes in the form of genetic counseling. See also genetic counseling....
  5. Precursor Precursor
    Precursor: Forerunner. That which precedes or is derived from an available source. The term "precursor" is applied to an inactive substance converted to an active one (such as an enzyme, vitamin, or hormone). The term "precursor" applies to any chemical that is transformed into another. From the L...
  6. Predispose Predispose
    Predispose: To make more likely or render susceptible. Smoking predisposes to a number of diseases, including esophageal cancer....
  7. Preeclampsia Preeclampsia
    Preeclampsia: A condition in pregnancy characterized by abrupt hypertension (a sharp rise in blood pressure), albuminuria (leakage of large amounts of the protein albumin into the urine) and edema (swelling) of the hands, feet, and face. Preeclampsia is the most common complication of pregnancy. It ...
  8. Preemie Preemie
    Preemie: Short slang for a premature baby. A preterm infant. Also spelled premie. ...
  9. Preexcitation Preexcitation
    Preexcitation: In cardiology, the premature activation of part of the ventricle due to transmission of impulses along an accessory pathway that is not subject to the normal delay at the atrioventricular node. Preexcitation is sometimes used as a synonym for the Wolff-Parkinson-White syndrome but pr...
  10. Prefix, medical Prefix, medical
    Prefix, medical: See: Medical prefix....
  11. Prefixes, medical Prefixes, medical
    Prefixes, medical: Medical words are often put together, cobbled from two or more building blocks. Among these building blocks are the prefixes. Examples of prefixes used in medicine include: a- : Prefix much employed in the health sciences indicating "not, without, -less" as, for example, in a...
  12. Pregnancy Pregnancy
    Pregnancy: The state of carrying a developing embryo or fetus within the female body. This condition can be indicated by positive results on an over-the-counter urine test, and confirmed through a blood test, ultrasound, detection of fetal heartbeat, or an X-ray. Pregnancy lasts for about nine ...
  13. Pregnancy abuse Pregnancy abuse
    Pregnancy abuse: Abuse of an expectant mother. This abuse is most often perpetrated by the woman's spouse, partner, or relative. Spurts of temper can progress to shouting and name calling. Then pushing and shoving. The use of physical violence can start a pattern. It is estimated that 1 in 12 pregna...
  14. Pregnancy calendar Pregnancy calendar
    Pregnancy calendar: A pregnancy calendar is a chronological depiction of changes in a pregnant woman and the embryo/fetus during the 40-week course of pregnancy. Pregnancy calendars usually describe development and growth of the fetus and changes in the mother's body at weekly intervals. The calen...
  15. Pregnancy danger from fifth disease Pregnancy danger from fifth disease
    Pregnancy danger from fifth disease: Caused by a virus known as parvovirus B 19. Symptoms include low-grade fever, fatigue, a "slapped cheeks rash," and a rash over the whole body. The illness is not serious in children. Pregnant women (who have not previously had the illness) should avoid...