In order to answer your question, a lawyer will have to look at the medical records. The statute of limitations depends on the which state's law is applicable. It is impossible to tell from the facts you have provided which state's law applies. Good Luck.
The general rule in NC is that the statute of limitations for negligence claims is three years and wrongful death claims is two years. There are some other rules as to when the statute begins running such as in injuries that were ongoing during medical treatments and other exceptions. You will need to contact a medical malpractice attorney to have that question answered with specificity.
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