Medical records go online, but at what cost to privacy?

Electronic medical records, or EMRs, are quickly becoming a reality for doctors and hospitals. If EMRs work, they'll be high-tech marvels -- letting patients access their own medical records on their home computers, helping doctors coordinate tests with each other to avoid duplication, giving medical researchers access to millions of medical records.

There are drawbacks. Patient advocates worry that EMRs could pose a threat to privacy. Doctors and hospitals say they're not being given enough time to set up the complex electronic systems or enough financial help to pay for them. The systems can cost $50 million to $100 million for hospitals and $15,000 to $50,000 for private doctors. But the potential pluses outweigh those complaints, many doctors and hospitals believe. The new systems are voluntary, but federal financial incentives for using them and penalties for failing to do so have most medical officials at least resigned to making the change.