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You will have to be more specific. Where did you hear the term "medicals furthered"? Was it in a letter or email from the Visa office? If so, please copy and paste the paragraph (delete your personal info) with that term in it and we can better help you.
 
If it means what I think it means, it has something to do with your medicals needing further info added (ie. additional tests or something was missing or needs clarification) and will likely mean re-doing medicals and adding something that was missing or a problem in your first one. You should call or send an enquiry if you letter does not state what you need to do.