What happens in the trimesters of pregnancy?
Which hormone released by the placenta during the 2nd and 3rd trimesters helps to sustain the pregnancy?
First trimester: 1-12 weeks of pregnancy Second trimester: 13-27 weeks of pregnancy Third trimester: 28-40+ weeks of pregnancy There are three stages of pregnancy which are divided into trimesters. The first trimester covers week 1 to week 12, the second trimester covers week 13 to week 28 and the final trimester covers week 29 to week 40.
In general, pregnancy in humans is divided into three trimesters - the first three months, the second three months and the final three months. This also roughly corresponds to stages in fetal development - cellular division and basic morphology, organ development and refinement, and overall fetal growth.
There are many ways to distinguish different stages. One way is measured in trimesters, as I'm sure you've heard of. Others measure weeks, months, fetal growth and development, etc. Try a basic Google search to find a few types of "stages". First trimester: 1-12 weeks of pregnancy Second trimester: 13-27 weeks of pregnancy Third trimester: 28-40+ weeks of pregnancy
During pregnancy the level of liver enzymes change. Serum total and free bilirubin concentrations are lowered. Serum alkaline phosphatase activity increases during late pregnancy. Serum gamma-glutamyl transferase activity levels decrease during the second and third trimesters and serum 5'nucleotidase activity increases slightly .
Lisinopril may pose a risk to the fetus in all three trimesters. Complications seen in fetuses or newborns exposed to Lisinopril during pregnancy incl kidney failure, developmental problems, and loss of life. If you're taking Lisinopril and pregnancy occurs, your healthcare provider will weigh the benefits and risks before making a recommendation.
The dose of calcium is within the recommended dietary allowance (RDA) in pregnancy but should be avoided in the first trimester because of potential teratogenicity. Safe in the last two trimesters if chronic high doses are avoided. The use of calcium in pregnancy may cause fetal hypomagnesemia, increased deep tendon reflexes and increased muscle tone
* First trimester bleeding is any vaginal bleeding during the first 3 months of pregnancy. Vaginal bleeding may vary from light spotting to severe bleeding with clots. Vaginal bleeding is a common problem in early pregnancy, complicating 20-30% of all pregnancies. * Any vaginal bleeding during the second and third trimesters of pregnancy (the last 6 months of a 9-month pregnancy) involves concerns different from bleeding in the first 3 months of your pregnancy. Any…
Fetal tachycardia (fetal = baby in last 2 trimesters ++ tachy = fast + cardi = heart) is a sustained heartbeat of over 160 beats per minute in an unborn baby in the last two trimesters of the pregnancy. The heart is not filling properly, and this can cause problems. The most common treatment is to give the mother the drug digoxin. The drug will pass through the placental membrane and be delivered directly to…