Pregnancy, tubal
An ectopic pregnancy that takes place in the Fallopian tube. Tubal pregnancies are due to the inability of the fertilized egg to make its way through the Fallopian tube into the uterus. Most tubal pregnancies occur in women 35 to 44 years of age. Tubal pregnancies account for 95 percent of all ectopic pregnancies. See ectopic pregnancy.
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- Pregnancy-associated malaria
A specific syndrome that occurs only in pregnant women and that is characterized by the accumulation in the placenta of red blood cells containing the malarial parasite. Pregnancy-associated malaria causes low birthweight and maternal anemia. Therefore, it is associated with substantial rates of morbidity (disease) and mortality (death) for both the mother and baby.
- Pregnancy-associated plasma protein A
Abbreviated as PAPPA or PAPP-A. A large zinc-binding protein that acts as an enzyme, specifically a metallopeptidase. The gene for PAPPA is in chromosome band 9q33.1. PAPPA has been used in prenatal genetic screening and studies of atherosclerosis. Women with low blood levels of PAPPA at 8 to 14 weeks of gestation have an increased […]
- Pregnant
The state of carrying a developing fetus within the body. The word “pregnant” comes from the Latin pre- meaning before + (g)natus meaning birth = before (giving) birth. The word “prenatal” has exactly the same origin.
- Prehypertension
A systolic pressure of 120 to 139 mm Hg or a diastolic pressure of between 80 and 89 mm Hg. Prehypertension is a precursor to chronic high blood pressure. Lifestyle changes are therefore recommended for anyone with prehypertension.
- Preleukemia
A condition in which the bone marrow does not produce enough blood cells. This condition may progress to become acute leukemia. Preleukemia also is called myelodysplastic syndrome or smoldering leukemia.