Brother you dont need any Form for remedical if you havnt receive attachment in email.. just tell your wife to take take printout of the email and put it along with her for the safe side as i did the same and they checked my email though you just can to call IOM number : 051-111-466-476 .. in email there should b date mentioned if not when your wife will call to IOM , ask them i got email from VO for remedical and they would ask her Name and Passport No. and will check in their list then will inform her about date and time to come
nothing complicated and she will have very quick assessment not like 1st medical if there is not serious medical injuries/diseases
Free Advice : Just reach there before 8 Am often they treat like 1st come 1st serve
hope you are clear now !