Welcome to Pregnancy Guide
Stages Of Pregnancy The Third Trimester Article
. For a permanent link to this article, or to bookmark it for further reading, click here.
You may also listen to this article by using the following controls.
Looking at Ultrasound Pictures of Stages of Pregnancy
from:The history of ultrasound is based in the sonar that was used by the worlds navies during World War 2. After the war, researchers began experimenting with sonar to see if it could be helpful in medical diagnosis. It was first used to detect cancers and other growths that needed medical attention. It wasn’t until the 1950s that the medical community recognized that sonar could be useful to take ultrasound pictures of stages of pregnancy.
Ultrasound is a series of very high frequency sound waves. These sound waves are of a frequency that can not be heard by humans, so they are not detected by the woman or the fetus. A tool called a transducer, which looks something like a stethoscope, is placed on a woman’s abdomen. The sounds go through her skin and bounce back off whatever they contact inside the abdomen, producing an image that resembles a fuzzy black and white photograph. These images have become the now familiar ultrasound pictures of stages of pregnancy.
The use of ultrasound became increasingly prevalent in the 1960s. By then, scientists had discovered that, if the sound waves were in motion, the Doppler Effect would produce more accurate pictures. The Doppler Effect is familiar to most people when they hear a horn coming toward them and then moving away. Since sound is different if it is coming or going, the technique was used to produce more accurate pictures. The technique also allows ultrasound pictures of stages of pregnancy to detect motion of the fetus.
By accident, it was learned that the best ultrasound pictures of stages of pregnancy were produced when the techniques was used on women with full bladders. The use of ultrasound has become a common practice in obstetrics and women usually enjoy seeing the first “pictures” of their infants.
Ultrasound pictures of stages of pregnancy are most common in the second and third trimesters of the pregnancy. By that point, the fetus is usually large enough that it can easily be detected. During the next several weeks, depending on the position of the fetus, it may be possible for a woman to discover not only the gender of her child, but whether or not she is carrying more than one child.
This information, however, is not infallible, as the pictures can be misleading in the earlier weeks of the second trimester. As the fetus grows and its organs, arms, legs, fingers, toes and head become more recognizable, it is easier to detect the gender of the child or children. The ultrasound pictures of stages of pregnancy also allow practiced physicians to detect any possible problems in the fetus.
Warning: file(http://www.searchfeed.com/rd/feed/TextFeed.jsp?trackID=Q3835304521&pID=62408&cat=stages+of+pregnancy+the+third+trimester&nl=5&page=1&excID=) [function.file]: failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found
in /home/cwatchco/public_html/preparents/stages/datas/searchfeed.php on line 8
Stages Of Pregnancy The Third Trimester Specific links
Stages Of Pregnancy The Third Trimester News
US Prison Reform Should Prioritize Pregnant Women - PolicyMic
US Prison Reform Should Prioritize Pregnant Women PolicyMic Congress should prohibit the shackling of female inmates in their third trimester of pregnancy and during active labor in all US correctional facilities. A standardized training program should be created for all correctional officers who work with ... |
Chemotherapy During Pregnancy: Yes, It's Possible - PBS NewsHour
 PBS NewsHour | Chemotherapy During Pregnancy: Yes, It's Possible PBS NewsHour But as she entered her third trimester, her body was in desperate need of something she would never have predicted: chemotherapy. Narth had just learned she had cancer. Stage-4 diffuse large B-cell lymphoma, to be precise, and her doctors informed her ... |
Georgia bans most abortions after 20 weeks pregnancy - Chicago Tribune
Georgia bans most abortions after 20 weeks pregnancy Chicago Tribune ... after 20 weeks pregnancy, the seventh state to outlaw most late-term abortions based on controversial research that a fetus can feel pain by that stage of development. Georgia already prohibits most abortions starting in the third trimester. |
Raven Dozier, Pregnant Woman Kicked By Dekalb County Police Officer, Recalls ... - Huffington Post
Raven Dozier, Pregnant Woman Kicked By Dekalb County Police Officer, Recalls ... Huffington Post The 20-year-old Georgia woman was in her third trimester in December when a police officer in boots kicked her in the stomach, leaving her on the ground, gripping her belly in agony. "The baby would normally move a lot, but after the kick he wasn't ... |
TN man's fight to stop embryo donation set stage for abortion rights - The Tennessean
TN man's fight to stop embryo donation set stage for abortion rights The Tennessean Wade nullified many state abortion laws, including TennesseeÃs 1883 ban on all abortions except to preserve the lives of women, it recognized that the state had an interest in the motherÃs life after she entered the second trimester of pregnancy, ... |
Clinical Conundrums - Clinical Oncology News
 Clinical Oncology News | Clinical Conundrums Clinical Oncology News True or False: In Hodgkin's lymphoma (HL) and NHL, when standard chemotherapy is administered during the second and third trimesters of pregnancy, minimal maternal complications or fetal detriment is observed. True or False: The STIM (Stop Imatinib) ... |
Pregnancy and exercise - Times of Malta
Pregnancy and exercise Times of Malta There are guidelines to offer advice to pregnant women on a diet and exercise and this is where 'eating for two' is highlighted as a myth. No extra calories are required until the third trimester, and even then only a further 200 per day are ... |