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Topic: Trimester

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In the News (Mon 18 Feb 19)

  Trimester definition - Medical Dictionary definitions of popular medical terms
Trimester: The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly three months in which different phases of fetal development take place.
The third trimester marks the final stage of fetal growth, in which systems are completed, fat accumulates under the soon- to-be-born baby's skin, and the fetus at last moves into position for birth.
Trimester is thus related in origin to menses and menstruation.
www.medterms.com /script/main/art.asp?articlekey=11446   (340 words)

  Trimester - Wikipedia, the free encyclopedia
In the second trimester the embryo, now known as a fetus, is recognisable as human in form, but is not developed enough to be viable if born.
In the third trimester the fetus reaches viability, and may survive if born prematurely.
The use of modern medical intensive care technology has greatly increased the probability of premature babies living, and has pushed back the boundary of viability to much earlier dates than would be possible without intensive medical assistance.
en.wikipedia.org /wiki/Trimester   (279 words)

 NaturalEco.com : Third Trimester
During the third trimester of pregnancy, your abdomen will continue to grow and your body will begin to prepare itself in earnest for birth as well as for breastfeeding.
As in the first trimester, fears may surface again about your ability to care for and protect your child and there may also be concerns and anxiety around the process of birth itself - especially if you are a first-time mother.
By the third trimester, your baby's skin is covered in a white, waxy substance called vernix which is protective.
www.naturaleco.com /knowledge-base/third-trimester-pregnancy.shtml   (1892 words)

 Pregnancy   (Site not responding. Last check: 2007-11-02)
It is during this first trimester that the fetus is most susceptible to damage from substances such as alcohol, drugs, certain medications, and illnesses such as rubella (German measles).
The embryo develops rapidly and by the end of the first trimester it becomes a fetus that is fully formed, weighing approximately 1/2 to one ounce and measuring, on average, three to four inches in length.
During the second trimester, the umbilical cord continues to thicken as it carries nourishment to the fetus.
www.baby-namesplus.com /blank?pageid=12&catstart=0&prodstart=0   (4184 words)

 Second Trimester
The second trimester, generally thought of as the 14th week of pregnancy through the 28th, is sometimes called the "golden period" of pregnancy.
The common aches and pains of the second trimester mostly stem from the increase in the size and weight of the uterus, as well as from the effects of pregnancy's hormones.
Pain in the lower abdomen during the second trimester is often related to the stretching of ligaments and muscles around the expanding uterus.
www.netwellness.org /healthtopics/pregnancy/faq8.cfm   (2839 words)

 Center for Prenatal Diagnosis   (Site not responding. Last check: 2007-11-02)
cervical canal near the end of the first trimester may be of value in assessing competence of the cervix.
Although most first trimester imaging may be obtained with transvaginal empty-bladder technique, evaluation of structures extending out of the pelvis and beyond the field of the transvaginal transducer may require transabdominal full-bladder technique.
Examples of some abnormalities which might be encountered in the first trimester can be seen in first trimester abnormalities.
www.cpdx.com /normal_first_trimester.html   (429 words)

 First Trimester Only Screen   (Site not responding. Last check: 2007-11-02)
An ultrasound examination to precisely determine the gestational age of the pregnancy as well as measure an area of space on the backside of the baby's neck.
The first trimester only screen is available to pregnant patients in the general population and is typically conducted on those under the age of 35.
Since the number of women with pregnancies actually affected with a certain genetic disorder is a small fraction of all women who receive a screen-positive result … the screen-positive rate is also considered the false-positive rate.
www.dynagene.com /education/patfirsttrimester.htm   (613 words)

 [Clinical Preventive Services] Screening Ultrasonography in Pregnancy   (Site not responding. Last check: 2007-11-02)
For asymptomatic low-risk women, a single scan in the second trimester may be used to estimate gestational age in women with unreliable dates of last menses and to detect multiple gestation and fetal malformations.
Routine ultrasound examination of the fetus in the third trimester is not recommended, based on multiple trials and meta-analyses showing no benefit for either the pregnant woman or her fetus ("D" recommendation).
On the evaluation of routine ultrasound screening in the third trimester for detection of light for gestation age (LGA) infants.
cpmcnet.columbia.edu /texts/gcps/gcps0046.html   (2331 words)

 Second Trimester of Pregnancy
While the first trimester is crucial for laying down the groundwork for the developing organs and concerns over the possibility of miscarriage, and the third trimester centers on the baby attaining maturity and the delivery process itself, the second trimester is a sort of reprieve during which the pregnancy can almost be enjoyed.
Two major problems of note during the second trimester are the incompetent cervix and placental abruption.
The menstrual-like cramps of the growing pains of the first trimester are replaced by the second trimester's "round ligament" pains.
www.gynob.com /2ndtrime.htm   (1100 words)

 The first trimester in pregnancy
For the pregnant woman, the first trimester is a time of physical and emotional adjustment to her pregnant state.
The expectant mother may feel extraordinarily tired and require more sleep because of the new demands on her energy and because of the subsequent shift in her metabolic rate, especially in the second and third months of pregnancy.
In the beginning of the first trimester, from conception to four weeks, the fertilized egg is less that 1/10 inch long.
arar.essortment.com /firsttrimester_rijl.htm   (620 words)

 The First Trimester   (Site not responding. Last check: 2007-11-02)
The first trimester lasts 12 weeks, the second from 13 to the end of 27 weeks, and the third from 28 to 40 weeks.
During the first trimester, it is normal to gain only a small amount of weight, about one pound per month.
The microbes can reach the baby through the placenta (a temporary organ joining the mother and fetus which supplies the fetus with blood and nutrients), through the amniotic fluid (fluid around the fetus), and through the layer of tissues in the mother's stomach.
www.4woman.gov /Pregnancy/first.htm   (3309 words)

 Second Trimester
The greatest risk of miscarriage is over after the first trimester, meaning the baby is growing and developing properly.
The second trimester is significant because during this time the baby can feel pain, hear the mother's voice, and dream.
By the end of the second trimester, although still fragile, the baby could be born at this point and still survive.
www.modernstork.com /content/002470.shtml   (298 words)

 Second Trimester-Pregnancy Information   (Site not responding. Last check: 2007-11-02)
As morningn sickness fades and your energy begins to come back, second trimester is generally like a breath of fresh air for the mother to be.
For many women the second trimester is the most comforable because the morning sickness and the fatigue you may have felt first trimester have probably lessened and baby is not big enough to cause a lot of discomfort yet.
Near the end of this trimester is when babies begin to be viable, meaning that if they are born they have a chance of surviving, however, the chances are low because of baby's poorly developed lungs.
www.mamasark.com /secondtrimester.htm   (367 words)

 Trimester Schedule   (Site not responding. Last check: 2007-11-02)
Once the trimester begins, students may change their schedule with the approval of Assistant Principal, Carole Whitehead, during the first seven days.
Freshmen and sophomore students are required to take a full year of math (all three trimesters), unless the math sequence would have them complete Algebra II before the end of their sophomore year.
Students must take and pass a minimum of four classes in the current and previous trimester to be eligible to participate in OSAA sanctioned activities and athletics (in our trimester schedule).
www.msd.k12.or.us /schools/mhs/trimester/schedule.html   (748 words)

 Drugs in Pregnancy and Breastfeeding(A to D)
2nd and 3rd trimester use is associated with hypocalvaria, and renal defects related to fetal hypotension and decreased renal perfusion.
1st trimester exposure in 28 infants resulted in a 2 fold increase in major birth defects, but the sample size is to small to draw firm conclusions.
1st trimester exposure in 19 infants resulted in a threefold increase in major anomalies,but the sample size is to small to draw firm conclusions.
www.perinatology.com /exposures/druglist.htm   (2222 words)

 TRIMESTER SCHEDULE AT MADISON HIGH SCHOOL   (Site not responding. Last check: 2007-11-02)
After reviewing the literature, visiting a high school in Florida, and having some phone conversations with schools using the trimester schedule, it was determined that a trimester schedule could have many positive benefits for Madison High School.
The downside of trimester scheduling according to teachers is that make-up work is more difficult to keep track of and get completed and students have more difficulty recovering from absences.
Parents agree/strongly agree (79%) that trimester schedule allows students to concentrate their time on fewer subjects.61% of parents agree/strongly agree that their student's prefer trimester schedule while 55% agree/strongly agree that their student's attitude is better.
www.madison.k12.sd.us /superintendent/trimester_schedule_at_madison_hi.htm   (507 words)

 First Trimester of Pregnancy   (Site not responding. Last check: 2007-11-02)
Pregnant women are advised to avoid all medications throughout pregnancy including the first trimester, unless the medications are necessary and recommended by a prenatal health care provider.
It is imperative that you begin prenatal care before (preferably) or during the first trimester.
By the end of the first trimester, your baby is about three inches long and weighs about half an ounce.
www.ovenbuns.com /3d-ultrasound-articles/first-trimester.htm   (945 words)

 Pregnancy in the second trimester
During the second trimester of pregnancy, there are changes taking place that may cause pain.
During the second trimester, most of the discomforts of early pregnancy have subsided.
Heartburn is a common complaint during the second trimester of pregnancy.
pa.essortment.com /pregnancysecond_rgvc.htm   (752 words)

 Human Reproduction, Lectures: Clinical Radiology   (Site not responding. Last check: 2007-11-02)
The first trimester of pregnancy is arguably the most exciting time in human development.
However, the first trimester is also an emotion-charged time because this period is fraught with a high failure and complication rate.
An important use of serum HCG levels in the first trimester concerns the discrimination between a normal intrauterine pregnancy and an abnormal pregnancy that may be ectopic.
medstat.med.utah.edu /kw/human_reprod/lectures/clin_radiology   (1784 words)

 Prgenancy loss in the first trimester
Mycoplasma can actually be a cause of recurrent spontaneous abortions while chlamydia and gonorrhea can also infect the uterus and fallopian tubes and damage the very delicate lining of the tubes(called tubal endothelium) and create a hostile environment for the transport of the fertilized egg promoting an increased risk for a tubal or ectopic pregnancy.
Other factors which have been implicated as causes of first trimester losses include auto immune disorders such as the Anti-phospholipid syndromes, substance abuse, cigarette smoking, multiple pregnancies and placental abnormalities such as gestational trophoblastic diseases, the most common being molar pregnancies.
Progesterone therapy is thought to be of value in circumstances where it is felt there might be a reduction in progesterone production from the ovary leading to poor embryonic development(inadequate luteal phase.) Aspirin, steroids such as prednisone and heparin have been used with some success in the treatment of immunological causes of pregnancy loss.
www.hygeia.org /poems1.htm   (475 words)

 Causes Of Second Trimester Miscarriage   (Site not responding. Last check: 2007-11-02)
second trimester miscarriage, doctors may recommend tests, including blood tests, to determine the cause of the loss.
of the uterus and incompetent cervix are the most common causes of miscarriage during the first part of the second trimester (12 to 20 weeks).
Miscarriage during the fourth through sixth months of pregnancy (second trimester) is usually...
femalebalancecream.com /2/causes-of-second-trimester-miscarriage.html   (513 words)

 Your Second Trimester
Pregnancy is measured in trimesters from the first day of your last menstrual period (LMP), totaling 40 weeks.
At the beginning of the second trimester, the fetus is about six inches long.
The second trimester is a good time to choose the person who will provide health care to you newborn.
www.pamf.org /pregnancy/second   (649 words)

 Tim Graham on Roe v. Wade on National Review Online
In a summary of key Supreme Court rulings on abortion, Chicago Tribune reporter Leslie Goldman tidily summarized that the court ruled "that in the first three months of pregnancy, the abortion decision must be left to a woman and her physician.
In the second trimester, states may restrict abortions to protect a woman's health.
In the third trimester, states may regulate or prohibit an abortion to protect the life of the fetus, except when necessary to preserve the life or the health of the mother." The intrusion of real life — where were all the convictions for second- and third-trimester abortions in the last 30 years?
www.nationalreview.com /comment/comment-graham020403.asp   (667 words)

 First Trimester Testing or Integrated Screening Offered Through Warde Medical Laboratory   (Site not responding. Last check: 2007-11-02)
However, testing is now available during the first trimester, and the integrated test, which requires testing both in the first and second trimester, recently has been shown to be the most specific and sensitive method (Wald; Wapner).
One negative feature of the integrated test is that because it requires assays during both the first and second trimester, there is a delay of over a month in most cases between the first sample and when the results are reported to the patient.
Another concern is that since the results of the first trimester testing are not independently provided to the pregnant woman, those who would test positive for carrying a Down syndrome fetus cannot avail themselves of the accurate, but invasive chorionic villus sampling (CVS) procedure that is done only in the first trimester.
www.wardelab.com /arc_15-1.html   (2767 words)

 Second Trimester of Pregnancy - Pregnancy Week By Week - Week 14 Through Week 26   (Site not responding. Last check: 2007-11-02)
The second trimester; however, is not always problem free.
Your partner realizes, particularly in the second trimester, that yes you are indeed pregnant and he will be a father.
And this is the trimester that your partner can feel the baby move for the first time, which can evoke deep and intense feelings from him, ranging from panic to exhilaration.
www.allaboutmoms.com /secondtri.htm   (529 words)

 The First Trimester
The first trimester is an exciting time in your pregnancy, but it's important to be prepared in the event of any problems, which are more common in the first trimester.
Between 60 and 80 percent of all women suffer from morning sickness in their first trimester, but be forewarned: Morning sickness may begin in the morning, but it often persists twenty-four hours a day for the first few weeks of pregnancy.
When something goes wrong during the first trimester, it has to do with the pregnancy's not "taking." This usually means two things: a miscarriage (bleeding and cramping are the main symptoms) or an ectopic pregnancy (sharp, abdominal cramping or searing pain on one side, depending on the tube).
my.webmd.com /content/article/4/1680_51800   (4396 words)

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