Medical Malpractice is professional negligence by act or omission by a health care provider in which the treatment provided falls below the accepted standard of practice in the medical community and causes injury or death to the patient, Standards and regulations for medical malpractice vary by country and jurisdiction within countries
While the result of a divorce on your situation depends on many factors and the rules in your jurisdiction, I can give you some general guidelines about the law and what may be involved.
She can ask for whatever she wants, but that does not mean the court will grant it. Financial support, alimony in this case, is determined at the discretion of the court, meaning there are no mandated guidelines that they follow to calculate it.
Your state likely has a statutory list of factors to consider in awarding support, including the length of your marriage, your age and health, the standard of living you enjoyed together, if you need support to meet your reasonable needs, and whether she can afford to pay support.
I highly advise you to consult with an attorney in your jurisdiction to get proper legal advise as I do not know the specifics of your matter.
For more information on alimony and other issues involved in family law, you might want to spend some time on DadsDivorce.com as they are an excellent, free resource for men who are facing (or potentially facing) a divorce. There is even an "Ask a Lawyer" section where you can ask questions and have them answered by real attorneys, as well as a "Forum" where you can talk with other men that are dealing with the same situation as you.