blood work..

so ive been EXTREMELY itchy im 36 weeks , like itchy EVERYWHERE!! all over my body , usually worse at night .. comes & goes .. i spoke to my doctor about it and she did blood work for cholestasis on monday but i still haven't heard back from her & im starting to really worry , has anyone ever been tested for this? & if so how long did it take for results to come back??

Im going crazy!!