How to audit the hospital audit

Give some ideas, the rest of their own ideas, hospitals have to business data, financial are good to check, business can be compared to the data to find out the hidden problems, such as: business data through the use of SQL statements to query the inventory, to see if there is the use of health insurance reimbursement of drugs to offset the non-medical drugs (I check a lot of negative); through the charging system records, the comparison of instrumentation use (large, high charge) Medical monitoring instruments have memory data, nuclear magnetic *** vibration and so on), to see if there are acquaintances to do the project does not charge the situation; there is also the hospitalization part, I have written a case with SQL statements to retrieve the number of days of hospitalization, and then statistics on the use of medicines, to see if there is a violation of the law; the use of inventory system, check the drug mark-up rate; against the mark-up rate to see your local specific regulations, you will have a big gain Oh! There's a lot you can do with a hospital system, and it's mostly a matter of thinking. To stand in the want to fake that aspect of thinking, I want to set the money or not spend money to see the doctor how I would do?