Gallbladder Functions & Serum Cholecystokinin Levels in Pregnant Women Diagnosed With Hyperemesis Gravidarum

Previously gallbladder functions have been observed in human with gallbladder disease. However it has never been evaluated whether there is any difference in gallbladder functions between healthy pregnant women and pregnant women diagnosed with hyperemesis gravidarum. Moreover correlation between hyperemesis gravidarum symptom scores and gallbladder functions has never been assessed. There is also few data comparing serum cholecystokinin levels between healthy pregnant women and those diagnosed with hyperemesis gravidarum. The investigators will measure serum cholecystokinin levels after a fatty meal (100 g chocolate) and compare two groups. In this study the investigators would like to evaluate gallbladder functions and serum cholecystokinin levels in women with hyperemesis gravidarum and compare these with healthy subjects.