in vivo, I would think, would refer to a test that you used inside your body. For example a test that you swallowed, or stuck in your vagina or something? Literally in the body! I don't really know, but given the terminology, that would be my guess. A blood test would still be in vitro, assuming you're thinking of the blood being drawn and then tested.
![[community profile]](https://www.dreamwidth.org/img/silk/identity/community.png){kind=small}
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
Date: 2006-07-27 10:54 pm (UTC)