They can not since medical is valid till the approval of I-485. But do what you feel like sicn eI am not a lawyer...elim said:love of god, the interviewer did ask for medical and we gave it to her. We only paid $100 per person for the medical which include tb test and draw blood. It is advisable to bring along new medical to avoid unnecessary delay. Who knows whether the interviewer will give this as an excuse for not having medical re-do.