I guess I kind of went with khamya9's suggestion of something weird. I wanted to pick something I might be able to reference again later. In the first panel, that's her jacket from the start of the comic. I'm not sure if that'll be a joke later. I was going to go with something really realistic for the blood collection, but decided instead to do something strange-looking ... although now that I think about it, I regret it not being some robot bug.
Now that I look at it, I'm worried that the second panel, a full-body scan, looks too much like they are recharging her or something. I'm not sure why I made her naked, I guess it seemed more interesting.