Testing After Recurrent Miscarriage

OK, ladies. I'm posting this for 2 reasons. 1) I know there are several of you that have experience with this testing and may be able to either decipher some of it for me and/or have opinions on what's on it and what's missing, from your experience, and 2) Some of you who haven't had this experience might be curious about it.

I received my lab order today for all the testing the RE wants me to do in an effort to find the cause of my two early miscarriages. The weirdest part to me is that it includes an HSG (hysterosalpingogram), but I have a good one on file from a year and a half ago. Why they want another one is going on my list of questions to ask when I call them next week. (I can't take the tests for 6 weeks from the miscarriage, so I have time.)

Here are the others:

Blood Tests

CBC with differential (automated)
Comprehensive metabolic panel (aka Chem 20 panel)
Prolactin (fasting)
TSH
Antithrombin III Activity
Cardiolipin AB Wireflex to ID titer (aka Anticardiolipin Ab (IgG/IgM)
Factor II activity (prothrombin 20210A mutation)
Factor V (Leiden) Mutation
Fasting Homocysteine level, Plasma
Lupus Anticoagulant Evaluation
Phosphatidylserine antibodies (aka AntiPhosphoSerine Ab (IgG/IgM))
Plasminogen Activator Inhib (PAI-1)
Protein C-Activity
Protein S-Activity

Cervical Cultures
Routine aerobic (I am wondering what this is, because it's so vague-sounding)
Mycoplasma/Ureaplasma

That pretty much covers it. Please, share any thoughts. And thanks. =)