Activity 2.1.5 Maternal and Child Health
Due to her advanced age, Judy Smith is concerned about the health of her baby, but she believes that some things should be left to chance. The couple is elated to be pregnant again and they are excited to meet the new addition to the family. In order to monitor the growth of the fetus and check for any chromosomal abnormalities, they have agreed to routine ultrasounds as well as amniocentesis. However, she and her husband James have decided against any other genetic testing of their unborn child.
In this activity, you will learn about the procedures and medical interventions used to monitor a pregnancy and safeguard the health of the fetus and the mother. You will analyze Judy Smith’s test results and you will investigate technology used to monitor and screen the growing child. Judy and James hope for a healthy pregnancy and a healthy birth. A diary entry from one of the parents will reveal steps the couple is taking to ensure proper prenatal care and the health of both mother and child.
Computer with Internet access
Part I: Prenatal Screening: Amniocentesis and Chorionic Villus Sampling (CVS)
Research the science behind amniocentesis and chorionic villus sampling (CVS) as well as the purpose of both tests. Begin by viewing the videos and reading the articles listed below. Use additional Internet sites as needed, but make sure to document each source. Take notes in your laboratory journal.
Medical University of South Carolina – Health Video Library http://www.muschealth.com/video/Default.aspx?videoId=10055&cId=34&type=rel
American Pregnancy Association – Amniocentesis http://www.americanpregnancy.org/prenataltesting/amniocentesis.html
American Pregnancy Association – Chorionic villus sampling http://www.americanpregnancy.org/prenataltesting/cvs.html
Create a Venn diagram that compares the two procedures. Consider including a simple, labeled illustration of each screening test in your diagram.
With a partner, discuss whether Judy Smith’s doctor should recommend amniocentesis or CVS. Write a one paragraph summary of your argument in your laboratory journal.
Answer Conclusion questions 1 - 4.
Judy Smith has amniocentesis during the 16th week of her pregnancy. The procedure goes well and there are no complications to the fetus. Chromosomal analysis reveals the following karyotype.
Define the term karyotype in your laboratory journal. Describe what a karyotype can tell expectant parents about their child. Use information you learned in PBS or other facts you find on the Internet to compose your definition.
Analyze the karyotype of the fetus. Scan for any chromosomal abnormalities and determine the sex of the new Smith baby. Describe your findings in your laboratory journal.
Research one chromosomal abnormality (other than Down syndrome) that can be diagnosed on a karyotype. Draw on the karyotype shown above to indicate how this disease or disorder would be...