Has anyone ever gotten a RFE during their N-400 interview, uploaded it to USCIS account and got in line to get scheduled for the Oath? Or does one need to receive another interview notice to appear before the IO with the RFE before the application can be approved and placed in line for the oath? My mom got a RFE on the N-648 form (medical exemption form) because the doctor did not answer one of the questions completely. The officer just want the doctor to complete the answer to approve the N-648.