The Aschheim-zondek Test for Pregnancy.

Many different methods have been devised for the early detection of pregnancy [5]. From the time of the Ancient Egyptians, inspection of the urine has been a popular place to start. However, it was not until the discovery of hormones [6] in the early twentieth century that the development of truly reliable pregnancy [5] tests occurred. Prior to 1978, when the first home pregnancy [5] tests became available in the United States, pregnancy [5] testing was done in hospital laboratories using various methods, one of them being the Aschheim-Zondek, or A-Z test [7].