| pregnancy proteins | Proteins produced by organs of the mother or the placenta during pregnancy. They may be either pregnancy specific (present only during pregnancy) or pregnancy associated (always present during pregnancy, but may also be present in individuals undergoing oestrogen therapy, taking oral contraceptives or in patients with certain malignancies.) (12 Dec 1998) |
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| pregnancy rate | Ratio of the number of conceptions that occur during a period to the mean number of women of reproductive age. (12 Dec 1998) |
| pregnancy reduction, multifetal | Selective abortion of one or more embryos or foetuses in a multiple gestation pregnancy. The usual goal is to improve the outcome for the remaining embryos or foetuses. (12 Dec 1998) |
| pregnancy-specific beta 1-glycoprotein | A glycoprotein with the electrophoretic mobility of a beta-1 globulin. It is produced by the placental trophoblast and secreted into the maternal bloodstream during pregnancy. It can be detected 18 days after ovulation and its concentration in plasma rises steadily until, at the end of gestation, it reaches 200 mg/ml. It has been proposed as a measure of placental function for fertility control and is a candidate for an early pregnancy test. (12 Dec 1998) |
| pregnancy tests | Tests to determine whether or not an individual is pregnant. (12 Dec 1998) |
| pregnancy toxaemia of sheep | A disease of preparturient ewes characterised primarily by impaired nervous function; the primary predisposing cause is undernutrition in late pregnancy. Synonym: ovine acetonaemia. (05 Mar 2000) |
| pregnancy toxaemias | Pregnancy-induced hypertensive states, including eph gestosis when oedema and proteinuria accompany hypertension. Other hypertensive disorders that develop during pregnancy or the puerperium are preeclampsia and eclampsia, either of which may be superimposed upon chronic hypertensive vascular or renal disease. (12 Dec 1998) |
| pregnancy trimester, first | Period of pregnancy from the first day of the last normal menstrual period through the completion of 14 weeks (98 days) of gestation. (12 Dec 1998) |
| pregnancy trimesters | The three periods of three months each in the normal pregnancy. (12 Dec 1998) |
| pregnancy trimester, second | Period of pregnancy from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation. (12 Dec 1998) |
| pregnancy trimester, third | Period of pregnancy from the beginning of the 29th through the 42nd completed week (197 to 294 days) of gestation. (12 Dec 1998) |
| pregnancy, tubal | Ectopic pregnancy within an oviduct. (12 Dec 1998) |
| pregnancy tumour | A pyogenic granuloma developing on the gingiva during pregnancy; thought to be related to hormonally altered response of the oral mucous membranes to local irritants such as bacterial plaque on adjacent teeth. Synonym: pregnancy tumour. (05 Mar 2000) |
| pregnancy, unwanted | Pregnancy, usually accidental or unplanned, that is not desired by the parent or parents. (12 Dec 1998) |
| pregnancy zone proteins | Glycoproteins with the electrophoretic mobility of an alpha 2-globulin. They are found in small amounts in normal human plasma but in much larger volume in the plasma of pregnant women. These proteins have also been found in increased amounts in individuals undergoing oestrogen therapy and are sometimes produced ectopically by tumours of non-placental origin. Pregnancy zone proteins are believed to be of maternal rather than placental origin. (12 Dec 1998) |