ER said Cholestasis?

Maggie • 25🌞Mommy to💙Luca 12/31/13💙 Logan 02/14/17💙
I was  sent to Labor and Delivery by my PCP due to having severe itching, no rash, for over a week. (No environmental changes) that my OB said was not pregnancy related so they wouldn't see me for it... 
At the ER I had a doctor from a different practice that is really concerned about Cholestasis but she couldn't order the blood test for my serum bile acid because it's a send out test and takes 3-4 days for results so she ran a liver function panel and that came back fine. She is pretty mad at my OB for denying to see me so she called and my OB said they will test it in 2 weeks when I have an appointment no sooner... just wondering if anyone has had this and their their blood work came back normal and then the bile acid came back indicating you do have it? She brushed me up on it and since I had HELLP and Preeclampsia last pregnancy she feels strongly I could develop this.