The validity period of nurse's practice registration will expire within 30 days, but she has not submitted an application for renewal of registration, so she needs to contact her unit or registration department as soon as possible to understand the specific requirements and procedures for renewal of registration. At the same time, she also needs a health examination to confirm that she meets the physical conditions for renewing her registration. Nurses need to submit some necessary materials, including health examination certificates, when submitting applications for renewal of registration. This certificate needs to be issued by a medical institution designated by the health administrative department to prove that the nurse has recently undergone a physical examination, and the examination results meet the prescribed health standards.