File:Pregnancy test.gif

Commercial Pregnancy Test

An example of one of the many commercial pregnancy tests available to the public. These preliminary tests are generally confirmed by a clinical urine or blood test.

Test is based upon the detection of human chorionic gonadotrophin - (hCG)

• Placental hormone initially secreted by cells (syncitiotrophoblasts) from the implanting conceptus during week two, supporting the ovarian corpus luteum, which in turn supports the endometrial lining and therefore maintains pregnancy.
• Hormone can be detected in maternal blood and urine and is the basis of many pregnancy tests.
• Hormone also stimulates the onset of fetal gonadal steroidogenesis, high levels are teratogenic to fetal gonadal tissues.

Links: Pregnancy Test | Human Chorionic Gonadotropin | Implantation | Week 2 | NIH - The History of the Pregnancy Test

Cite this page: Hill, M.A. (2024, April 26) Embryology Pregnancy test.gif. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Pregnancy_test.gif

What Links Here?

© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G