first trimester


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Related to first trimester: second trimester, first trimester pregnancy

first trimester

The first 3 months of pregnancy.
See also: trimester
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
All 140 pregnant women in their first trimester with increased serum uric acid level (cut off value >4mg/dl) were included in the study according to inclusion criteria (Antenatal woman's with gestational amenorrhea of less than 13 weeks, Age 20 to 40 year, Parity 0 to 8) and exclusion criteria (Pregestational diabetes, Hypertension, Renal disease, Liver disease, Multiple gestations, Gout, Drugs which increases uric acid excretion, Past history of gestational diabetes mellitus, History of good size baby in previous pregnancies).
Among women with stage 1 high blood pressure (130/80 to 139/89 mm Hg) in the first trimester, almost 38% developed a hypertensive disorder of pregnancy, which was an 80% higher risk than among those with normal blood pressure, the findings showed.
It showed that the prevalence of GDM were significantly increased as FPG elevated at the first trimester (17.5% vs 6.8%, I2 = 28.503, P < 0.001).
These results are consistent with results of other studies.9,21 Similarly, TSH reference value for the first trimester in this study (0.05-2.8 uIU/ml) was limited as compared to 0.01-4.05uIU/ml reported in a study conducted in the United States (US).19 In another US study22 the same automated immunoassay analyser(ADVIA CENTAUR analyser) was used and reference interval was found to be 0.04-3.6 uIU/ml.
"Given the well-documented effectiveness of lithium in reducing relapse in the perinatal period, some important clinical considerations are either to continue lithium in a lower dose during the first trimester or to restart lithium after the first trimester or immediately postpartum," Bergink said.
"We found that in women who don't already have diabetes or develop diabetes during pregnancy, we can still measure risk for having a child with congenital heart disease by looking at their glucose values during the first trimester of pregnancy," Priest added.
Therefore this study was designed to determine a method for the management of first trimester miscarriage that is safer and more efficient for our resource-poor population.
However, this study is unique in that, in order to better understand this relationship, it looks at smoking in the months leading up to pregnancy as well as during the first trimester. While it's understood that smoking during pregnancy can have negative effects on both the mother and the fetus, I was especially interested in how smoking even before conception can affect fetal development." Ms.
This was a prospective study of 86 women presented to Ray Hospital and Test Tube Baby Centre, Rourkela, India with vaginal bleeding in first trimester between 1st January 2015 and 31st May 2016.
Conclusion: Fetal nasal bone length at high percentiles in the first trimester of pregnancy may aid in the prediction of adverse outcomes such as preterm labour, preterm premature rupture of membranes and oligohydramnios.
First trimester nausea and vomiting may serve an adaptive and prophylactic function to remove potentially contaminated foods from their potential effect on the developing embryo.
It is routinely evaluated in the first trimester as its abnormality serves as a marker for fetal aneuploidy and cardiac anomalies.

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